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【单选题】
Carol invited the author to talk about his trip to her students so that they can _____.A.
get to know the real world
B.
be encouraged to have big dreams
C.
be contented to stay in their safe home
D.
meet new people other than just their kin
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皮皮学刷刷变学霸
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【简答题】A．The language they are written in is not widely known. B．They cannot be moved from where they were found C．The writing in them has faded D．Many people want credit for the discovery.
【简答题】Yd联结的三相变压器，一次绕组加额定电压空载运行，将二次绕组的闭合三角形打开，用电压表测量开口处电压；再将三角形闭合，用电流表测量回路电流。问在三相变压器组和三相心式变压器中，各次测得的电压、电流有何不同?为什么?
【单选题】Tony, tell me the result of the discussion ______ you had with your dad yesterday.
A.
what
B.
which
C.
when
D.
who
【单选题】I cannot tell the ______ difference between the twins.
A.
slender
B.
single
C.
simple
D.
slight
【单选题】We cannot tell whether in general trade surplus is good or bad because:
A.
Economists do not agree on this issue.
B.
Trade is always balanced.
C.
It depends on economic environment in each country.
D.
We do not have enough evidence from the available data.
【简答题】变压器二次绕组开路、一次绕组加额定电压时,虽然一次绕组电阻很小,但一次电流并不大,为什么? Z m 代表什么物理意义?电力变压器不用铁心而用空气心行不行?
【单选题】Babies are not born with __ moral sense; they cannot tell __ difference between right and wrong.
A.
a 不填
B.
不填；a
C.
a; the
D.
the; the
相关题目：
【单选题】I cannot tell the ______ difference between the twins.
A.
slender
B.
single
C.
simple
D.
slight