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【简答题】
晶闸管串联时,给每只管子并联相同阻值的电阻R是________措施,给每只管子并联RC支路是________措施。
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【单选题】Three of the world's smallest countries - Kuwait, the United Arab Emirates (UAE), and Qatar have the highest average incomes per person according to a recent World Bank publication which measures inco...
A.
Kuwait.
B.
ＵＡＥ.
C.
Japan.
D.
Qatar.
【单选题】The boys were happily a snowman, _________ with cold.
A.
their faces red
B.
their faces were red
C.
their faces to be red
D.
their faces turned red
【单选题】If an American construction company built a road in Kuwait, this activity would be
A.
included in the U.S. GDP
B.
included in the Kuwait GDP
【单选题】The teacher tells the students ________in class.
A.
don’t make faces
B.
not to make faces
C.
not make faces
【单选题】Kuwait faces an aging population as well as an epidemic of diabetes, hear disease and obesity-related complications that place great demands_____its health care system.
A.
with
B.
for
C.
to
D.
on
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