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【多选题】
科学技术是生产力，这是指（ ）。A.
它是直接生产力
B.
它是知识形态的生产力
C.
它是潜在的生产力
D.
它渗透到生产力基本要素中，转化为生产力
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】发生重度颠簸，乘务员的处置程序错误的一项是
A.
马上返回座位做好，系好安全带
B.
立即广播，让旅客坐好
C.
洗手间按的旅客也需要另外提醒
D.
洗手间的旅客不得返回座位
【单选题】How many grams of gold are there in 2.65 moles of Au?
A.
5.22 ×10 2 g
B.
5.22 ×10 3 g
C.
5.22 ×10 4 g
D.
5.22 ×10 5 g
【单选题】The static pressure and density of the airstream behind the expansion wave are ________.
A.
increased
B.
decreased
【单选题】The static pressure and density of the airstream behind the shock wave are greatly ________.
A.
increased
B.
decreased
【判断题】At the stagnation point, the static pressure is maximum and equals total pressure.
A.
正确
B.
错误
【单选题】How many grams of salt does a typical British supper contain?
A.
1.
B.
0.6.
C.
2.
D.
2 or more.
【简答题】The static pressure at any point in a fluid is in all directions
【简答题】How many grams of porridge does he use each morning?
【单选题】— __________does the baby panda weigh? —About 20 grams.
A.
How
B.
What
C.
How many
D.
How much
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