病毒、蓝藻和酵母菌都具有的物质是_刷题宝

题干

病毒、蓝藻和酵母菌都具有的物质是（）

A：遗传物质

B：细胞壁

C：细胞膜

D：细胞质

上一题下一题 0.0难度选择题更新时间:2019-10-16 09:53:26

答案(点此获取答案解析）

A

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下列有关名著的说明，不正确的一项是 (　　)

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妈妈做饭时，小军在旁边仔细观察。于是联想到许多物理知识，其中错误的是（　　）

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下图表示人在呼吸时，胸腔内膈肌存在的两种状态。当交警怀疑某司机是酒后驾车时，都会要求该司机对着酒精测试仪吹气。司机在吹气时，膈肌状态的变化为（）

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根据短文内容的理解，选择正确答案。

Swimming club

Do you like to swim? Do you want to swim well? Then we have good teachers to teach you. Opening time：2: 00 p.m ~ 9: 30 p.m

Ticket price: 15 yuan for children, 20 yuan for adults(成人)

Please call Mr. Wang at 877-778

Children dancing club

We are a dancing club for children of 5~14. we have lessons from 9：00 to 10: 30 every Saturday and Sunday.

If you like dancing, just join us.

Call Miss Wu at 263-566

同类题5

阅读下面短文，掌握其大意，然后从各题所给的A、B、C、D四个选项中选出最佳答案。

One day, a little schoolboy went home with a pain in his stomach.

"Well, sit down and 1 a cake," said his mother."Your stomach 2hurting because it's empty.It'll be all right when you've got something in it."

Five minutes later, Dad came home 3 the office.And he said he had a headache.

"That's because your head is 4," said his clever son."You'll be all right if you have got 5 in it." His dad and mum laughed.

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