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【单选题】
差分式放大电路由双端输入改为入时,则差模增益变为原来的( )。( )A.
提高一倍
B.
提高二倍
C.
减小一半
D.
不变
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举一反三
【简答题】听力原文：The difference between British English and American English are not important. What is more important? 'The differences between British English and American English are not important.' Why does t...
【多选题】下列哪些部位应设臵应急照明( )
A.
封闭楼梯间、防烟楼梯间及其前室、消防电梯间的前室或合用前室和避难层(间);
B.
消防控制室、消防水泵房、自备发电机房、配电室、防烟与排烟机房以及发生火灾时仍需正常工作的其它房间;
C.
观众厅、展览厅、多功能厅和建筑面积超过200㎡的营业厅、餐厅、演播室;
D.
建筑面积超过100㎡的地下、半地下建筑或地下室、半地下室中的公共活动场所;
E.
公共建筑中的疏散走道。
【单选题】If I________ the challenges at that time, I might not have started my own business.
A.
would know
B.
have known
C.
had known
D.
will know
【简答题】Don’t walk on _________the grass.
【简答题】短文填空 The English language has changed and developed 1 time. At first, English was mainly 2 on German. Then foreign rulers came, bringing along their native languages. As a result, the English language...
【单选题】If business had been carried out to our satisfaction, we ______ to renew the Agent Agreement.
A.
had agreed
B.
should have agreed
C.
already agreed
D.
shall agree
【单选题】高层民用建筑应设防烟设施的部位是( )
A.
防烟楼梯间及其前室、消防电梯前室和合用前室封闭避难层
B.
无直接自然通风且长度超过20m的内走道
C.
面积超过100m2，且经常有人停留或可燃物较多的房间
D.
高层建筑的中庭
【单选题】The securing systems for containers were developed to prevent container movement during which ship motion ________．
A.
Surge
B.
Roll
C.
Sway
D.
Yaw
【单选题】避难走道的前室、防烟楼梯间及其前室或合用前室的机械加压送风系统宜（）设置。当需要共用系统时，应在支风管上设置压差自动调节装置。
A.
分别
B.
合并
C.
独立
D.
分开
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