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【单选题】
When will college students curb their spending and only buy what is necessary?A.
After they have lived on campus for a relatively long time.
B.
When they have got used to living according to their money-spending plan.
C.
After they have had roommates to share furnishing or grocery expenses with them.
D.
When they have known that their hard- earned money shouldn’t go to movies.
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举一反三
【单选题】Python 语言中十进制整数50,对应的二进制、八进制、十六进制形式分别是()
A.
0b101000, 0o50,0x50
B.
0b110010, 0o62,0x32
C.
0b110010, 0o62,0xc2
D.
0b110010, 0o32,0xc2
【简答题】妊娠期妇女的情绪状态会对儿童心理健康产生影响，主要通过（）起作用。先天素质是遗传基因和胎儿发育过程中环境因素之间复杂相互作用的结果。
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