问题
单项选择题
装卸危险化学品的时候防止撞击、摩擦、滚翻、拖拉，避免使用（）工具，装卸机械有防止火花产生的设施。
A.橡胶
B.塑料
C.铁制
答案
参考答案：C
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装卸危险化学品的时候防止撞击、摩擦、滚翻、拖拉，避免使用（）工具，装卸机械有防止火花产生的设施。
A.橡胶
B.塑料
C.铁制
参考答案：C
| 阅读理解。 |
 |
| 1. If you are a beginner for surfing, you should pay _______ for 1 hour's board and lesson. |
[ ] |
| A. $26 B. $13 C. $8 D. $18 |
| 2. You have to catch the boat at _______ when you go diving in the afternoon. |
[ ] |
| A. 8 p.m. B. 1 p.m. C. 9 a. m. D. 8 a. m. |
| 3. The hotel guests can swim in the pools _______. |
[ ] |
| A. out of the hotel B. with $ 3 every hour C. free of payment D. only for 50 minutes every day |