问题
单项选择题
带式输送机正常运转时，人员（）。
A、可以站在机头卸载滚筒前，观察带面及滚筒
B、只能站在滚筒前2—3米
C、可以清理滚筒上沾煤
D、可以调整皮带机跑偏
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
带式输送机正常运转时，人员（）。
A、可以站在机头卸载滚筒前，观察带面及滚筒
B、只能站在滚筒前2—3米
C、可以清理滚筒上沾煤
D、可以调整皮带机跑偏
参考答案：B
| 完形填空。 David is 8. One day his friend Rose __1__ to him, "This Sunday is my birthday. Do you want __2__ to my birthday party?" David says, "Yes." On Sunday, David asks his mother if he can go to the party. His mother says, "Yes, you can go, but you __3__ be polite. Don't __4__ for any food. Someone will give you __5__." "All right, Mum." David answers and he goes to Rose's house __6__ his bike. There are __7__ children at the party. They play together, and then Rose's mother gives them some food. But she forgets David. He __8__ for some time, and then he takes his __9__ to her and says, "Do you want a nice _10__ plate?" | ||||
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