某河段中的沉积河沙可供80人连续开采6个月或60人连续开采10个月

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问题单项选择题

某河段中的沉积河沙可供80人连续开采6个月或60人连续开采10个月。如果要保证该河段河沙不被开采枯竭，问最多可供多少人进行连续不问断的开采（假定该河段河沙沉积的速度相对稳定）（）

A.25

B.30

C.35

D.40

答案

参考答案：B

完形填空

Look at this picture. This is a photo 1 my family. There are(有) 2 people(人) in the picture. They are my 3 , my mother, my brother, my sister and me. The 4 is my father. My mother 5 near (在……旁边) my father. The ____6_____beside (在……旁边) my mother is my brother. The little girl near my mother is my 7 . 8 is very clever and cute（聪明又可爱）. Everyone likes her very much. Who is 9 boy in the middle (在中间)? Ah! It is me. 10 love（爱） my family very much（非常）.

小题1:A. for B. on C. of

小题2:A.seven B. six C. five

小题3:A. mother B. father C. grandfather

小题4:A .girl B. boy C. man

小题5:A. are B. is C. am

小题6:A.girl B. boy C. son

小题7:A.brother B. sister C. son

小题8:A. He B. She C. They

小题9:A. a B. these C. the

小题10:A. I B. Me C. My

查看答案

单项选择题 A1/A2型题