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【单选题】
劳动力商品使用价值的特点是在被使用时A.
能把自身价值转移到产品中去
B.
只能创造出自身价值
C.
把全部使用价值消费掉
D.
能创造出比自身价值更大的价值
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反馈参考答案：
举一反三
【多选题】关于风对飞行影响的描述,对的有
A.
当侧风的风速大过一定速度时，飞机则不能起降
B.
在巡航时，飞行员都会力争在有利的风向高度上飞行
C.
对低速飞机和高速飞机而言，飞行员需要考虑风的影响的阶段均为起飞着陆阶段
D.
起落过程地面阶段风将影响到飞机的空速，从而影响到飞机的升力和操纵，严重时还将造成事故
【单选题】He has two sons. They are Jim and Tom. Jim is Tom’s brother.
A.
old
B.
older
C.
elder
D.
young
【单选题】2 He has two sons, and _____ are college students.
A.
both of which
B.
both of whom
C.
both of them
D.
both of it
【单选题】Mr. White has two sons and each of them has a sister .how many children does he have ?
A.
one
B.
two
C.
three
D.
four
【单选题】Block group contains .
A.
connecting rods, crankshaft and flywheel
B.
pistons, connecting rods and oil pan
C.
cylinder block, cylinder head and oil pan
D.
piston rings, gasket and connecting rods
【单选题】He has two sons, and _____ are college students.
A.
both of which
B.
both of whom
C.
both of them
【单选题】He has two sons, and _____ are college students.
A.
both of which
B.
both of whom
C.
both of them
D.
both of it
【单选题】Block group contains______.
A.
connecting rod, crankshaft and flywheel
B.
pistons, connecting rods and oil pan
C.
cylinder block, cylinder head and oil pan
D.
piston rings, gasket and connecting rods
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