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【单选题】
It was ___a difficult question___even the top student in the class could not work it out.A.
such that
B.
so that
C.
such as
D.
enough as
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【简答题】everyone are in a good mood. Spring has always been ______
【简答题】The assumption has always been that the two aims were complementary.It has always been ______.
【简答题】The railway station has always been a fascinating place, representing departure as well as ______. (arrive)
【单选题】The English language has always changed, but the rate of change has been uneven.
A.
portion
B.
speed
C.
standard
D.
measure
【单选题】George Washington______.
A.
always will and always has been an American hero
B.
always has and always will an American hero
C.
always has and always will be an American hero
D.
always has been and always will be an American hero
【多选题】关于惯性环节的频率特性,下列说法正确的是:
A.
极坐标为第四象限内的一个半圆
B.
对数幅频特性由两条直线构成，斜率分别为0与-1，转折频率为1/T。
C.
对数相频特性的0至-90度范围内中心对称的曲线
D.
对数幅频特性是一条光滑曲线，有两条渐近线，斜率分别为0与-1，转折频率为1/T。
【简答题】Red-light running has always been regarded as a minor wrong, and so it has never been taken seriously. When the violation becomes habitual, however, a great deal more than a traffic problem is involve...
【单选题】As discovered by expedition scientists, Antarctica has not always been so cold as it is today, so has the Arctic.
A.
Right
B.
Wrong
C.
Not mentioned
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