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【判断题】
本班未进行工作的采掘工作面，对瓦斯和二氧化碳浓度应每班至少检查()次。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】为了避免频繁的乒乓切换，TimeToTrigger应该调（）。
【单选题】Who was the mother of Prince William and Prince Harry?
A.
Bloody Mary
B.
Elizabeth I
C.
Princess Diana
D.
Queen Victoria
【简答题】为了避免频繁的乒乓切换，TimeToTrigger应该调[](大、小)。
【单选题】What was the only pleasure of the queen?
A.
make no pretty women see themselves in a mirror
B.
give no chance to herself to see a mirror
C.
torment others especially when those who were happy
D.
make no young lovers enter marriage happily
【简答题】常用硬件描述语言有（）、（）以及（）。
【简答题】English ___________ was at its height during the reign of Queen Elizabeth, who was on the throne at the age of twenty-five.
【简答题】常用硬件描述语言有 Verilog HDL 、 AHDL 以及( )
【单选题】Who was made governor of the new land?
A.
The King and Queen of Spain
B.
Columbus
C.
Columbus’s father
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