按GB150－1998《钢制压力容器》的规定，采用补强圈进行补强时，应同时遵循的条件

阅读下面短文，用所给动词的适当形式填空，使短文完整、通顺。每空不限一词。

      Rose is one of the funniest girls in her class. She looks like a boy, and she is good at performing. So she

(1)________ (choose) to play Harry Potter by her classmates last week. She said happily, "I'm sure that I am

able to do the job well because I (2)________ (see) the movie many times already."

      Dick, one of Rose's best classmates, is also an actor in the play. He (3)________ (like) to perform the play

with Rose. He said, "We are confident that we (4)________ (do) well in our school art festival next week." 

      Mrs. Smith, their teacher, pays much attention to their play. She often encourages them. Yesterday

afternoon when she (5)________ (watch) their performance, she took photos of them.

种植水果使我市很多农户富裕起来了。水果表皮常有寄生虫，种植户一般用“波尔多液”杀死沙糖桔、葡萄等水果表皮的寄生虫。

（1）“波尔多液”是用CuSO₄溶液与石灰水[主要含Ca(OH)₂]混合而成的，混合后发生反应的化学方程式为                                       。配制时不能用铁桶的原因是（用化学方程式表示）：                              。

（2）喷洒“波尔多液”后在人的手上、衣服上常会残留一些水洗不掉的蓝色斑点，这些蓝色斑点属于                       （填“酸”“碱”“盐”或“氧化物”），这时可在厨房用品中选用                            浸泡衣服将其洗去。

根据DL5009.1—2014《电力建设安全工作规程第1部分：火力发电》4.12.4起重机严禁同时操作（）动作，在接近满负荷的情况下不得同时操作（）动作。

A.2个；2个

B.3个；2个

C.3个；3个

D.2个；3个

职业教育是一种社会需求制约的教育，其（），既受社会需求的推动，又受社会需求的约束。

A.培养目标

B.发展规律

C.就业渠道

D.结构和速度

压力愈高，水之沸点是（）

A.降低

B.升高

C.不变

D.无关