一般来说，柑橘授粉后完成受精的时间约需5～7天。

当力偶中任一力沿作用线移动时，力偶矩的大小（）

A．增加

B．减小

C．不变

D．无法确定

第II卷（共55分）

第四部分：写作（共三节，满分55分）

第一节：单词拼写（共10小题；每小题1分，满分10分）

1．I think it’s an ___________________ (吸引人的) painting. 

2. Physical beauty must also be ____________ (陪同，伴随) by an attraction to something deeper within a person.

3. A real hero would never lose his ___________________(尊严).

4 He made a s               of what had been done.

5. To teach such a naughty boy is really a c                      （挑战性）job.

6 We should make full use of educational f                      （设施）.

7 He                    （合作）with his family to finish the work last week.

8. Einstein gained international r                       （认可）in his theory of relativity.

9 Bill Clinton, the f___________ president of the United States of America is said to pay a visit to China next week.

10 I have to _____________(调整) my watch; it’s three minutes fast.

下列（）地层对中子的减速能力最强。

A.泥岩

B.砂岩

C.灰岩

D.白云岩

往复泵的特点之一是产生瞬间压力峰值可消除输送管线的阻塞。

Oracle OLAP是Oracle数据库系统的 【16】 解决方案。