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【单选题】
下列关于设计概算，说法错误的是( )。A.
设计概算投资一般应控制在立项批准的投资控制额以内
B.
如果设计概算超过控制额，可以修改投资控制额，并报送建设单位备案
C.
如果设计概算超过控制额，必须修改设计或重新立项审批
D.
设计概算批准后不得任意修改和调整，如需修改或调整时，原批准部门重新审批
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【简答题】正弦交流电压在0.1s的时间内变化了5周,则它的周期等于____s。
【简答题】You have worked in a Non-Governmental Organization for several years, but now you need to quit the job because you are moving to another city with your family. Write a letter to your boss Mr. Smith to...
【单选题】— Linda had nothing for breakfast this morning, ______? — No. She got up too late. [ ]
A.
had she
B.
hadn't she
C.
did she
D.
didn't she
【单选题】—Alice had nothing for breakfast this morning, ________? —No. She got up too late. [ ]
A.
had she
B.
hadn't she
C.
did she
D.
didn't she
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【单选题】Although he practiced______ those English words a lot, he ______ the pronunciation.
A.
read, finished
B.
to read, memorized
C.
reading, forgot
D.
reading, improved
【单选题】The train ______ she was traveling was late. [ ]
A.
on that
B.
for which
C.
on which
D.
which
【单选题】He spends as much time as he can _______ English.
A.
reading
B.
to read
C.
read
D.
will read
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