I bought this pair of sports shoes the money I’ve just earned.
A. by
B. with
C. at
D. for
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Doing part-time jobs will not your study.
A. affect
B. effect
C. affection
D. effective
The of the heart is to pump blood through the body.
A. use
B. reason
C. power
D. function
And I’d be worried about too much in the market.
A. being invested
B. investing
C. investment
D. invested
以下操作的数据库是xscj查询选修了101号课程的学生姓名。补全语句。selectfrom xs where 学号 in(SELECT from xs_kc where 课程号='101')