问题
单项选择题
棉、麻等天然纤维素纤维随着回潮率的上升,其强度()。
A.增大
B.减小
C.接近不变
答案
参考答案:A
棉、麻等天然纤维素纤维随着回潮率的上升,其强度()。
A.增大
B.减小
C.接近不变
参考答案:A
完形填空。 |
A: Hi! Zhao Mei! B: Hi! Zhang Ping! Where are you 1 ? A: I'm 2 to the Zoo 3 Chen Jie. B: May I 4 with you? A: 5 . Let's go together. |
( ) 1.A. go ( ) 2.A. go ( ) 3.A. with ( ) 4.A. to go ( ) 5.A. Certainly | B. going B. going B. by B. going B. You can | C. to go C. walk C. and C. walk C. Yes | D. goes D. walking D. to D. go D. Go |