进行原油洗舱时使用的惰性气体中氧气含量不得超过()。
A.14%
B.11%
C.8%
D.5%
参考答案:D
第II卷 (非选择题 共35分)
第四部分:写作(共二节,满分35分)
第一节;单词拼写,每空限填一词(共10小题,每小题1分,满分10分)
76. The boy suddenly lost his b_______ and fell from the tall tree.
77. Wet weather may c_______ for 3 weeks.
78. Don’t b_______ your mother about it now; she is very tired.
79. They made a lot of scientific e_______ in this small dark room.
80. The food will d________ more quickly if you chew it well.
81. We totally _______ (敬佩) him for what he does.
82. Although you live in Taiwan, you should remember your ________(祖先) are Chinese.
83. She eagerly _______ (撕) the envelope open and read the letter.
84. The main _______(主题) of the meeting was to reduce the air pollution.
85. You don’t know how ________(宝贵的) your friendship is to me.
检修开关、刀开关或熔断器时,应在断口两侧验电,同杆架设多回路电力线路验电时,()。
A.先验下层,后验上层
B.先验上层,后验下层
C.先验高压,后验低压
D.先验远侧,后验近侧