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traveling on you own 英语四级 作文怎么写
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举一反三
【单选题】I think the book is ____ and it is ____. What's your opinion? [ ]
A.
useful; a help
B.
of useful; helpful
C.
of interest: interested
D.
of use; of very help
【单选题】若每一条指令都可以分解为取指，分析和执行三步。已知取指时间t取指=8△t，分析时间t分析＝3△t，执行时间t执行＝12△t。如果按照流水线方式执行指令，从头到尾执行完 100条指令至少需(41) △t。如果取指时间t取指=8△t，分析时间t分析＝12△t，执行时间 t执行＝3△t，则从头到尾执行完100条指令至少需(42)△t。
A.
1200
B.
1223
C.
1224
D.
1211
【简答题】皮亚杰认为，人对环境的适应与平衡是通过（）和（）这两个过程实现的。
【单选题】I felt it is my responsibility _____you of our decision.
A.
inform
B.
to inform
C.
informing
D.
informed
【简答题】完形填空。 The House Fairy As young parents, my husband and I felt that at age 6 and 8, our children were old enough to be cleaning their rooms and their beds. But they thought 1 . My complaints, re...
【简答题】I felt that our heritage was basically a (spirit)__________ heritage.
【简答题】短文改错。 I felt sadly yesterday when our teacher told us something about Project Hope in class. It has set up to help the children in the countryside who can't pay to go to school. After school I came ho...
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