Cơ cấu lao động theo thành phần kinh tế ở nước ta đang chuyển dịch theo hướng:

:

A. Tăng tỉ trọng khu vực có vốn đầu tư nước ngoài, giảm tỉ trọng khu vực nhà nước và khu vực ngoài nhà nước.

B. Giảm tỉ trọng khu vực ngoài nhà nước, tăng tỉ trọng khu vực nhà nước và khu vực có vốn đầu tư nước.

C. Giảm tỉ trọng khu vực nhà nước, tăng tỉ trọng khu vực ngoài nhà nước và khu vực có vốn đầu tư nước ngoài.

D. Tăng tỉ trọng khu vực Nhà nước, giảm tỉ trọng khu vực ngoài Nhà nước và khu vực có vốn đầu tư nước ngoài.

Cho 21 gam hỗn hợp gồm glyxin và axit axetic tác dụng vừa đủ với dung dịch NaOH, thu được dung dịch X chứa 27,6 gam muối. Cho X tác dụng với dung dịch HCl dư, thu được dung dịch chứa m gam muối. Giá trị của m là: (Cho H=1; C=12; N=14; O=16;Cl=35,5; Na=23):

A. 39,85. 

B. 33,95.

C. 40,55.

D. 22,75.     

The word “robot” first appeared in a 1921 stage play by Czech writer Karel Capek. In the play, a man makes a machine that can think, which he calls a robot and which ends up killing its owner. In the 1940s, the American science fiction writer, Isaac Asimov, wrote a series of stories about robots and invented the term 'robotics', the science of robots. Meanwhile, in the real world, the first robots were developed by an engineer, Joseph F. Engelberger, and an inventor, George C. Devol. Together they started Unimation, a manufacturing company that produced the first real robot in 1961, called the Unimate. Robots of this type were installed at a General Motors automobile plant and proved to be a success. They worked reliably and saved money for General Motors, so other companies were soon acquiring robots as well.

These industrial robots were nothing like the terrifying creatures that can often be seen in science fiction films. In fact, these robots looked and behaved nothing like humans. They were simply pieces of computer-controlled machines, with metal "arms" or "hands". Since they were made of metal, they could perform certain jobs that were difficult or dangerous for humans, particularly jobs that involve high heat. And since robots were tireless and never got hungry, sleepy, or distracted, they were useful for tasks that would be tiring or boring for humans. Industrial robots have been improved over the years, and today they are used in many factories around the world. Though the use of robots has meant the loss of some jobs, at the same time other jobs have been created in the design, development, and production of the robots.

Outside of industry, robots have also been developed and put into use by governments and scientists in situations where humans might be in danger. For example, they can be sent in to investigate an unexploded bomb or an accident at a nuclear power plant. Researchers also use robots to collect samples of hot rocks or gases in active volcanoes. In space exploration, robots have performed many key tasks where humans could not be present, such as on the surface of Mars. In 2004, two robotic Rovers, small six-wheeled computerized cars, were sent to Mars.

What can be inferred from the passage about robots?

Select one:

A. Their appearance negatively affects the job market.

B. They help humans travel to the outer space.

C. They can stop active volcanoes from erupting.

D. They take away some jobs but offer some in return.

Samsung ________ by those who have bought them for technical faults.

A. has all Galaxy Note 7 returned

B. made all Galaxy Note 7 return

C.  made all Galaxy Note 7 returned   

D. has all Galaxy Note 7 to return  

Increasing trade ivory products is a threat to the_______ of elephants.

A. survive

B. survival

C. survived

D. surviving  

bài 3. cho tam giác abc, dựng ra phía ngoài tam giác các hình vuông abcd và acef. vẽ đường cao ah kéo dài ha gặp df tại e. chứng minh rằng di = if.

clockwise có phải danh từ ghép ko

Supply the correct form of the verb in the bracket.

44. Hung (not visit) __________________ his grandparents since he (go) __________________ to university.

45-47.It’s very unpleasant (wake up) __________________ and (hear) __________________ the rain (beat) __________________ on the window.

48-49. Does your jacket need (wash) __________________?

~ No. But you need (iron) __________________it .

50. Your son (get) __________________ taller and taller, Mrs. Mai

Mark the letter A, B, C, D to indicate the underlined part that needs correction in each of the following questions.Holi is a spring festival also known as a festival of colors.

A. is B. a C. of D. color