当天然气中甲烷含量超过()时,称为干气。A、80% B、85% C、90% D、95

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问题:

当天然气中甲烷含量超过()时,称为干气。

A、80%

B、85%

C、90%

D、95%

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题型:单项选择题

Sports can help us a lot. Taking exercise can make us strong. In collective集体的sports like basketball,volleyball or football,wewill learn the importance of cooperation合作. And sports can also help us relax after work or study.

However,as the saying goes,“There are two sides of everything. ”Sometimes we may hurt other players or ourselves if we are not careful enough when participating参加in sports activities. What’s more,too much or hard practice can be bad for our health.

Sports can make us healthy both physically and psychologically心理地. It is also a good way for people to know each other and can improve friendship between people. So long as we are careful enough,sports can do us nothing but good.

小题1:   can make us strong.

A.Taking exercise

B.Singing

C.Sleeping

D.Making friends小题2:Too much exercise can be   for us.

A.good

B.bad 

C.helpful

D.enough小题3:Which of the following is NOT true?

A.Basketball and volleyball are both collective sports.

B.Sports can help us relax after work or study.

C.Sometimes we may hurt other players or ourselves when participating in sports activities.

D.Sports can only make us healthy physically.小题4:The best title for this passage can be“    ”.

A.Sports and health

B.Everybody must do sports

C.Sports are nothing to people

D.No one likes sports

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下列对于上矢状窦的说法,正确的是()

A.与横窦共同汇合成窦汇

B.与下矢状窦汇合

C.穿过颈静脉孔

D.位于硬脑膜与顶骨之间

E.以上都不是

题型:单项选择题

慢粒患者,WBC65×109/L,巨脾,出现左上腹剧痛,诊断最可能是()。

A.肺梗死

B.急性胰腺炎

C.心绞痛

D.脾梗死脾周炎

E.肾结石

题型:单项选择题

甲乙双方订立买卖合同,甲为出卖人,乙为买受人,约定收货后10日内付款。甲在交货前有确切证据证明乙经营状况严重恶化。根据《中华人民共和国合同法》的规定,甲可采取的措施是( ) 。

A.行使同时履行抗辩权

B.行使后履行抗辩权

C.行使不安抗辩权

D.行使撤销权

题型:单项选择题

卫生监督协管工作常用的执法文书有哪几类?

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