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【多选题】
化学电池是利用物质的化学反应产生电能的电池,如( )、( )和( )等。A.
镍镉电池
B.
镍氢电池
C.
锂离子电池
D.
太阳能电池
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【简答题】Section CNow listen to the following recording and answer questions 16 to 19.16.A. They found the theory of flying. B. They had few precedents to look to. C. They knew how to control an airplane from ...
【简答题】Section CNow listen to the following recording and answer questions 16 to 19.16.A. In one’s middle age. B. In one’s late twenties. C. In one’s childhood. D. In one’s s or early twenties.
【单选题】Section C Now listen to the following recording and answer questions 16 to 18. 16.
A.
New Orleans was once colonized by England.
B.
New Orleans has much more cultural influences.
C.
New Orleans is more like a melting pot.
D.
New Orleans was greatly influenced by French culture.
【多选题】衡量液体对母材润湿能力的大小，可用液相与固相接触时的接触角大小来表示。当接触角为( )时，液体可以润湿固体。
A.
0°
B.
20°
C.
100°
D.
120°
E.
150°
F.
180°
【多选题】衡量液体对母材润湿能力大小,可用液相与固相接触时的接触角大小来表示。当接触角为( )时,液体可以润湿固体。
A.
0°
B.
20°
C.
100°
D.
120°
E.
150°
F.
180°
【简答题】Section CNow listen to the following recording and answer questions 16 to 19.16.A. New laws made it possible to buy farmland. B. The government increased its agricultural imports. C. Economic depressi...
【简答题】Section CNow listen to the following recording and answer questions 16 to 18.16.A. For the past five weeks. B. For the past six weeks. C. For the past two months. D. For the past three months.
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