满足{a}⊆M⊂{a,b,c,d}的集合M有______个.

题型:填空题

问题:

满足{a}⊆M⊂{a,b,c,d}的集合M有______个.

考点:集合的含义及表示
题型:填空题

阅读理解。

     Today is Sunday. Our class meets at seven a.m at the school gate. We take a bus to Shuihui Park. The price of the ticket for each adult is eighteen yuan, but for each student is half. The park is open from 8

a.m. to 5 p.m.

     First we play games in the park. And then we have dinner at noon. After dinner we sit and chat under

the trees. At half past three, we go to the Swimming Club. We come back home at about six p.m in the

afternoon because it is time for us to have supper. We are all tired but we are very happy.

1. We meet_________.

A. at the school gate

B. in the park

C. in the bus

D. in the Swimming Club

2. The price of the ticket for each student is_________ yuan.

A. nineteen

B. thirty-six

C. nine

D. eighteen

3. The park is open for_______ hours a day.

A. eight

B. nine

C. ten

D. eleven

4. After dinner we sit and chat_________.

A. at home

B. near the club

C. on the sofa

D. under the trees

5. Why do the students go home at about six p.m in the afternoon?

A. Because they are happy.

B. Because they are tired.

C. Because they go home for supper.

D. Because they have some homework to do

题型:填空题
已知点A(1,0),点R到直线l:y=2x-6上的一点,若
RA
=2
AP
,则点P轨迹方程为______.
题型:填空题

哮喘患者最不宜选用的降压药为()。

A.利尿剂

B.α受体阻断剂

C.β受体阻断剂

D.二氢吡啶类钙离子通道阻滞剂

E.血管紧张素转换酶抑制剂

题型:填空题

Everyone in my class ______ very much.    [ ]

A. enjoys singing      

B. enjoy singing    

C. enjoys to sing      

D. enjoy to sing

题型:填空题

企业在选择银行时,重要的是要选用适宜的借款种类、借款成本和借款条件,此外还应考虑的有关因素包括( )。

A.银行对企业的态度

B.贷款的专业化程度

C.银行的稳定性

D.银行对贷款风险的政策

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