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【简答题】
( ) 类制冷剂包括 R23.R32.R41.Rl25.R134.R143.R152 等。 A 、 HFA B 、 HFB C 、 HFC D 、 HFD
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【单选题】If we had enough time to prepare, the result______ much better.
A.
would be
B.
would have been
C.
had been
D.
were
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【单选题】If we __________enough rain last year, we___________a good harvest this year. [     ]
A.
had had; would have gained
B.
had had; would gain
C.
had ; would have gained
D.
had ; would gain
查看完整题目与答案
【单选题】在下列经脉中起于中焦的是( )
A.
心经
B.
心包经
C.
肺经
D.
任脉
查看完整题目与答案
【单选题】We didn't have enough chairs, ______ some of the students had to sit on the floor. [     ]
A.
but
B.
so
C.
or
D.
and
查看完整题目与答案
【单选题】下列哪项监测项目不属于空气质量中的基本监测项目
A.
二氧化硫
B.
一氧化碳
C.
氮氧化物
D.
臭氧
查看完整题目与答案
【单选题】If we'd had enough time and resources, I'm sure we could have done the work ________.
A.
start-up
B.
in-house
C.
off-line
查看完整题目与答案
【单选题】在下列经脉中起于中焦的是
A.
心经
B.
心包经
C.
肺经
D.
任脉
E.
督脉
查看完整题目与答案
【单选题】听力原文：W: Have you had the brakes and tires checked? And do you have enough money? M: I'm taking care of everything, and I'm sure it's going to be a wonderful trip. Q: What's the woman going to do? (16)
A.
Buy some traveler's checks.
B.
Borrow some money from a friend.
C.
Check the brakes and tires.
D.
Spend some time traveling.
查看完整题目与答案
【单选题】在下列经脉中起于中焦的是
A.
任脉
B.
督脉
C.
冲脉
D.
肺经
E.
心经
查看完整题目与答案
【单选题】We had to ______ our visit to the Bird Nest because we didn’t have enough time to see them before we left Beijing.
A.
prohibit
B.
postpone
C.
promote
D.
deposit
查看完整题目与答案
相关题目：
【单选题】If we had enough time to prepare, the result______ much better.
A.
would be
B.
would have been
C.
had been
D.
were
查看完整题目与答案
【单选题】If we __________enough rain last year, we___________a good harvest this year. [     ]
A.
had had; would have gained
B.
had had; would gain
C.
had ; would have gained
D.
had ; would gain
查看完整题目与答案
【单选题】在下列经脉中起于中焦的是( )
A.
心经
B.
心包经
C.
肺经
D.
任脉
查看完整题目与答案
【单选题】We didn't have enough chairs, ______ some of the students had to sit on the floor. [     ]
A.
but
B.
so
C.
or
D.
and
查看完整题目与答案
【单选题】下列哪项监测项目不属于空气质量中的基本监测项目
A.
二氧化硫
B.
一氧化碳
C.
氮氧化物
D.
臭氧
查看完整题目与答案
【单选题】If we'd had enough time and resources, I'm sure we could have done the work ________.
A.
start-up
B.
in-house
C.
off-line
查看完整题目与答案
【单选题】在下列经脉中起于中焦的是
A.
心经
B.
心包经
C.
肺经
D.
任脉
E.
督脉
查看完整题目与答案
【单选题】听力原文：W: Have you had the brakes and tires checked? And do you have enough money? M: I'm taking care of everything, and I'm sure it's going to be a wonderful trip. Q: What's the woman going to do? (16)
A.
Buy some traveler's checks.
B.
Borrow some money from a friend.
C.
Check the brakes and tires.
D.
Spend some time traveling.
查看完整题目与答案
【单选题】在下列经脉中起于中焦的是
A.
任脉
B.
督脉
C.
冲脉
D.
肺经
E.
心经
查看完整题目与答案
【单选题】We had to ______ our visit to the Bird Nest because we didn’t have enough time to see them before we left Beijing.
A.
prohibit
B.
postpone
C.
promote
D.
deposit
查看完整题目与答案