问题
单项选择题
Thetwogoalsofanoperationsystemare（）andefficiency.
A.convemence
B.quick
C.optimize
D.standardize
答案
参考答案：A
解析：
操作系统的两大目标是方便和效率。
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Thetwogoalsofanoperationsystemare（）andefficiency.
A.convemence
B.quick
C.optimize
D.standardize
参考答案：A
解析：
操作系统的两大目标是方便和效率。
用方框中所给的单词适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。
Some students complain(抱怨) that their parents say a lot to them, but never 小题4:______ to them. Some of them even say it 小题5: . “My parents don't allow(允许) me to play computer games, 小题6: other classmates are doing that”. Others say, when they're 小题7: phone calls to friends, their parents like to ask if they're speaking to a boy or a girl. These make them very 小题8: . Some students even decide(决定) to leave home. But they don't know running away may bring them some more problems. Show your parents you're growing up. Then they'll feel you're no 小题9:__________ a small child. 小题10: you follow(听从) the advice, you'll have a happy life and never think of running away. |