防爆电梯的维保单位,应当按照()的要求制定日常维护保养项目和内容。
A、年度维保
B、电梯定期检验
C、制造单位
D、A和B
参考答案:C
用所给词的适当形式填空。
1. He (go) to the park yesterday.
2. What is Jenny doing now?
She is (read) a story book.
3. I have many (gift) for you.
4. Did you (have) a nice trip?
5. Let's (give) them some apples.
根据汉语意思完成下列句子。
1. 如果我是你的话,我将拒绝做此事。
If I _____ you, I _____ to do it.
2. 我有很多朋友,当他们需要帮助的时候就来找我。
I have _____ friends. When they need help they _____ me.
3. 未经允许不要进入该屋子。
Don't go into the house _____.
4. 你能告诉我明天去哪里吗?
Could you tell me _____ tomorrow?
5. 我们想让她代表我们班参加学校的比赛。
We want her _____ the class in the school contest.