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问题 选择题

下列关于水的说法错误的是（　　）

A．河水属于混合物

B．洗过青菜的水可用于浇灌花草

C．蒸馏水属于纯净物

D．没有经过处理的工业废水可向江河里排放

答案

A、河水有多种物质组成，属于混合物，故A正确；

B、洗过青菜的水可用于浇灌花草，属于节约用水，故B正确；

C、蒸馏水有一种物质组成，属于纯净物，故C正确；

D、没有经过处理的工业废水属于污染物，不可向江河里排放，故D错误．

故选D

填空题

A: What’s the date today
B: It’s June 16.
A: (16) Then it’s Dragon Boat Festival today, isn’t it
B: Yes. (17)
A: Did you have rice dumplings this morning
B: Sure. (18)
A: I didn’t.
B: What a pity! But I happen to have got some with me. (19)
A: I’d love to. By the way, why do you call it Dragon Boat, Festival
B: Because in China, people race dragon boats this day every year.
A: Oh, I see. (20)
B: You are welcome.
A. We Chinese usually eat rice dumplings this day.
B. I hate eating rice dumplings.
C. Thank you for your rice dumpling.
D. I don’t think so.
E. Would you like to have one
F. Already
G. How about you
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单项选择题 B型题

老年患者最常见的肾脏异常是（）

A.肾细胞癌

B.肾盂癌

C.肾血管平滑肌脂肪瘤

D.多囊肾

E.单纯性肾囊肿
查看答案