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【单选题】
According to the second paragraph, which of the following is NOT true?A.
The first stage of a multistage rocket consists of rocket engines that provide a large amount of force.
B.
The first stage lifts the entire launch vehicle off the launch pad and into the first part of the flight.
C.
After its engines use up its fuel, the first stage part of the rocket separates from the rest of the launch vehicle and falls to the space.
D.
The entire launch vehicle includes its load of fuel, the rocket body, and the satellite.
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B.
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A.
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B.
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C.
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D.
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A.
The drug did not treat illnesses as it should.
B.
The drug changed the people's way of life.
C.
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D.
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