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【单选题】
(2019福建13题2分)在相同温度下,关于导体的电阻,下列说法正确的是( )A.
铜线的电阻一定比铝线的小
B.
长度相同粗细也相同的铜线和铝线电阻相等
C.
长度相同的两根铜线，粗的电阻较大
D.
粗细相同的两根铜线，长的电阻较大
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举一反三
【单选题】He is working hard, _____ will make him pass the final exam. [ ]
A.
that
B.
which
C.
for which
D.
who
【单选题】Would the news _____he failed to pass the exam bother you?
A.
which
B.
that
C.
of which
D.
on which
【单选题】As to the format of the exam, which of the following statements is true?
A.
It will include multiple-choice questions.
B.
It will consist of three multiple-choice questions and five essay questions.
C.
Students will have to answer all the essay questions.
D.
Students will be required to answer three of the five questions.
【简答题】下列动物中胸腔纵隔将胸腔分为左右两室,且互不相通,暴露心脏时动物不需做人工呼吸,这种动物是A. 4
【简答题】网络通信协议主要由 3 个要素组成: __________ 、 ______________ 和交换规则。
【单选题】The thing she wasn't sure was that she failed in this exam. [ ]
A.
that
B.
which
C.
about which
D.
in which
【多选题】如图所示正弦波振荡电路,以下说法正确的是
A.
电路为RC桥式振荡电路，振荡频率f=1/(2*pi*R*C)
B.
若R1短路，则输出波形失真近似为方波
C.
若R1开路，则无输出波形
D.
若Rf短路，则输出波形失真近似为方波
E.
若Rf开路，则无输出波形
【单选题】The boy the teachers considered _________ was caught __________ in the exam, which surprised us very much.
A.
to be the best; cheating
B.
as the best student; to cheat
C.
being the best; cheating
D.
as a good student; to cheat
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