问题
问答题
采煤工作面保证有两个安全出口（其中一个通向进风巷，另一个通向回风巷），对保证安全生产有什么作用？
答案
参考答案：能保证工作面通风可靠；当一个安全出口被封堵时，人员可从另一个安全出口疏散。
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采煤工作面保证有两个安全出口（其中一个通向进风巷，另一个通向回风巷），对保证安全生产有什么作用？
参考答案：能保证工作面通风可靠；当一个安全出口被封堵时，人员可从另一个安全出口疏散。
Sunday________(1) the favorite day for our family. My parents________(2) not________(3) work. My sister and I ________(4) go to school. We________(5) at home and________(6) in the morning. In the afternoon, my sister and I ________(7) out to buy some different things. My sister likes songs. She ________(8) new tapes. I buy story books, a frisky, a kite and things________(9) that. We also buy some small gifts (礼物) for our parents. We________(10) them. They love us very much. We live in a happy family.
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