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【单选题】
当边际产量小于平均产量时,平均产量(    )。
A.
递增    
B.
递减
C.
不变    
D.
变化不确定
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【单选题】At last the enemy soldiers had no choice but ___ their guns. A. to lay down B. lie down C. laying down D. lay down
A.
to lay down
B.
lie down
C.
laying down
D.
lying down
【判断题】李清照词“人比黄花瘦”中的黄花指的是菊花。
A.
正确
B.
错误
【单选题】李清照词 “ 人比黄花瘦 ” 中的黄花是 什么 花 ?( )
A.
腊梅花
B.
黄花
C.
菊花
D.
丁香花
【简答题】钻孔灌注桩钻孔时的泥浆循环工艺有 两种,其中 工艺的泥浆上流速度高,携土能力大。
【单选题】—I'm stressed out. —You should _________. [     ]
A.
lie down and rest
B.
eat an apple
C.
listen to some music
D.
go to bed early
【单选题】You should try _______down and take a rest.
A.
lie.
B.
to lie.
C.
lies.
D.
lay.
【单选题】听力原文:If someone told you a white lie, it probably means that the lie is ______ . (14)
A.
Not bad.
B.
Bad
C.
Harmful.
D.
White.
【简答题】李清照词“人比黄花瘦”中的黄花是()。
【单选题】The enemy had no choice but _____ their arms and _____. [     ]
A.
lie down, give in
B.
lay down, give in
C.
to lay down, give in
D.
to lie down, to give in
【单选题】— I'm very thirsty. — Maybe you should __________. [     ]
A.
lie down
B.
have a rest
C.
drink some water
D.
see a dentist
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