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【简答题】
Reading comprehension. Do you often feel a little sleepy after lunch? Well, that's normal. Your body naturally lays down. What should you do about it? Don't drink coffee, take a nap (打盹), instead. There are many advantages of a daily nap. First of all, you can remember things better and make fewer mistakes. Also, you can learn things more easily after taking a nap. A 20-minute nap can reduce (减少) your pressure (压力). Finally, a nap can make you cheerful. But there are some simple rules that you should follow about taking a nap. You should take up at noon, about eight hours after you wake up. In general, a 20-minute nap is the best. If you sleep longer, you may fall into a deep sleep. After waking up, you'll feel worse. Also, you should set an alarm clock. That way, you can feel fully relaxed during the nap. You don't have to go looking at the clock so that you don't oversleep (睡过头). Now, the next time you feel sleepy after lunch, don't get stressed. Put your head down, close your eyes and have a short sleep during the daytime. Fill in the blanks according to the passage. Only one word for each blank. When you feel a little sleepy after lunch, you should take a nap (1)______ of drinking coffee. After twenty (2)______ nap, you can remember things better, make fewer mistakes, learn things more easily. It can reduce your pressure and cheer you up. But you don't (3)______ the simple rules, you won't feel (4)______. In order to (5)______ yourself during the nap, you should set an alarm clock to wake you up on time.
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select 入学成绩 from xs where 性别 = “ 男 ”
B.
select max( 入学成绩) from xs for 性别=“男”
C.
select max( 入学成绩) f rom xs where 性别 = “ 男 ”
D.
select count( 入学成绩 ) from xs where 性别 = “ 男 ”
【单选题】查询XS表中男同学入学成绩的最高分,实现该功能的命令为()
A.
select 入学成绩 from xs where 性别=“男”
B.
select max(入学成绩) from xs for 性别=“男”
C.
select max(入学成绩) from xs where 性别=“男”
D.
select count(入学成绩) from xs where 性别=“男”
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采取一定期限内禁止申报新的产品
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责令公司停止接受部分或全部新业务等监管措施
C.
责令停业整改
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A.
select 入学成绩 from xs for 性别 = “ 男 ”
B.
select max （入学成绩） from xs for 性别 = “ 男 ”
C.
select max （入学成绩） from xs where 性别 = “ 男 ”
D.
select count （入学成绩） from xs where 性别 = “ 男 ”
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【单选题】查询XS表中男同学入学成绩最高分,能实现目的的命令是()
A.
select 入学成绩 from xs where 性别=“男”
B.
select max(入学成绩 ) from xs for 性别=“男”
C.
select max(入学成绩 ) from xs where 性别=“男”
D.
select count(入学成绩 ) from xs where 性别=“男”
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