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【单选题】
The oil pressure in the gas production curve drops significantly, the water production decreases, and the casing pressure does not change significantly. The possible reason is ( )A.
the collapse of Well wall
B.
Wellbore effusion
C.
Tubing break
D.
Oil pressure meter br eak
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【简答题】听下面一段材料，回答第1-3题。 1. Why does the bus driver refuse to leave? A. Because the bus driver is ill. B. Because there is something wrong with the bus. C. Because it is raining heavily. 2. What will Mr. Whit...
【单选题】下列叙述正确的是（ ）
A.
标准状况下的气体摩尔体积约为22.4L
B.
H 2 的摩尔质量为2g/mol
C.
摩尔是用来衡量微观粒子多少的一种物理量
D.
0.1molH 2 SO 4 含有氢原子数的准确值为1.204×10 23
【简答题】What do you think are the benefits to customers of a global market-place? (Why? / Why not?)
【简答题】听对话，回答问题。 1. Why was the boy late again? A. The bus was too slow. B. He took a wrong bus. C. He forgot his key. 2. hat class are they having? A. Chinese. B. Chemistry. C. Math.
【单选题】下列说法正确的是 [ ]
A.
1molO 2 和1molN 2 所占体积都约为22.4L
B.
H 2 的气体摩尔体积约为22.4L
C.
在标况下，1molH 2 和1molH 2 O所占的体积都约为22.4L
D.
在标况下，22.4L由N 2 、N 2 O组成的混合气体中所含有的N的物质的量约为2mol
【简答题】Why is global business important?
【简答题】Why is it that the global telegraph network was truly revolutionary? [A] It has changed the way we do business and communicate. [B] It makes virtual communities possible. [C] It makes real-time global...
【单选题】下面叙述正确的是 [ ]
A.
标准状况下气体摩尔体积约为22．4L
B.
H 2 的摩尔质量为2g/mol
C.
摩尔是用来衡量微观粒子多少的一种物理量
D.
0．1molH 2 SO 4 含有氢原子数的准确值为1．204×10 23
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