营业期间,正常营业的场所必须()人以上在岗,并保持高度警惕,以保证营业场所的安全。
A、2;
B、3;
C、4;
D、5;
参考答案:B
根据句意填入单词或短语的正确形式。
1. He r_______ the mud from his shoes.
2. The whole house went up in _______ smoke in an hour. (不到)
3. Your life is in danger. There is no d_______ about it.
4. This necklace is w_______ 1,000 US dollars.
5. The boy _______ the watch _______ to see how it ran. (拆开)
6. His boss _______ him though he himself didn't think he had done anything special.
(非常器重)
7. the two countries have been _______ for many years. People there are suffering a lot.
(交战)
8. They had planned to blow up the bridge but their bombs failed to e _______.
9. She was Titanic, a ship which was said never to s_______.
若正在应用激素的病儿患水痘应立即减量或()。