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【单选题】
Except in rare cases, it is impossible to extinguish a shipboard fire by ______.
A.
removing the heat
B.
removing the oxygen
C.
removing the fuel
D.
interrupting the chain reaction
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参考答案:
举一反三
【单选题】电路如图所示,电压源为 U=10V,电流表的读数为1A,则Z为 Ω
A.
j10
B.
j100
C.
j1
D.
-j10
【简答题】Please t ake "idol interview" for example, shoot a video " Do you like to eat ou t?" w ith your partners. Remember, the group leader needs to hand in the video performance by Decem ber 18 .
【简答题】对话理解。(听对话和问题。从A、B、C三个选项中,找出能回答所提问题的正确答案。每段对话听两遍) (     )1. A. December 24th. (     )2. A. The second floor. (     )3. A. At 6: 20. (     )4. A. In a museum. (     )5. A. By bus. B. December 25th. B. T...
【简答题】Party B shall ship the goods ______ one month of the date of this Contract, i.e.not later than December 15.
【单选题】在如图所示电路中,电源电压U=10V,电阻R=30Ω,则电流I值为()。
A.
3A
B.
2A
C.
1A
【单选题】电路如图所示,电压源为 U=10V,电流表的读数为10A,则Z为 Ω
A.
j10
B.
j100
C.
j1
D.
-j10
【单选题】词根 decem- 的含义是:
A.
十二
B.
C.
D.
十一
【简答题】电路如习题4-6图所示,其中电流源的电流为i S =2A,电压源的电压u S =10V。 (1)计算电流源、电压源功率; (2)要使2A电流源的功率为零,求电压源u S1; (3)要使10V电压源的功率为零,求电流源i S1。
【多选题】关于手持式电动工具的安全使用,下列哪种说法正确(
A.
意外停电时不要忘记切断电源
B.
将泵放在牢固的竹箩内再放入水中
C.
不切断电源把泵放入水中
【单选题】You are viewing our online Hotel and Air Packages Travel valid from September 10 to December 1* Tokyo Comfort Zone Inn Room includes.' Four-star rating 1 single bed Internet access and satellite telev...
A.
A black-out period changed his travel plans.
B.
He was busy on the weekend of the 3rd.
C.
He forgot to book his return flight.
D.
It is his first time traveling to Tokyo.
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