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问题 单项选择题

职业安全健康管理体系认证证书的有效期为( )年。

A．1

B．2

C．3

D．5

答案

参考答案：C

解析：职业健康安全管理体系认证证书有效期为3年，有效期届满时，可通过复评，获得再次认证。

完形填空

短文填空（共7小题，计7分）

用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。

Now more than 20 schools in the northwest of China 小题1: __________ (use) E-textbooks. Some teachers say that they make learning easier and 小题2:__________ (teach) more convenient.

Jing Xuan is excited about lessons like Chinese, English and math. She小题3:__________ (enjoy) the pictures and animations(动画）in the E-textbooks. The children here 小题4:__________ (study) with E-textbooks since last September

With the help of the E-textbooks, some good ideas 小题5: __________ (share) at times. Some parents encourage their children 小题6:__________ (try) the E-textbooks to make learning easier. But others worry about their children’s health.

“You can’t imagine how the growing popularity of E-textbooks is changing the way the students learn! More and more students 小题7: __________ (learn) with E-textbooks in the future. However, there’s still a long way to go.” said the headmaster.
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解答题

几天大雨过后，在田野中一些柳树的枯树杆上会生长出木耳，这些木耳属于生态系统中的分解者．______（判断对错）
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