问题
判断题
离心泵具有自吸能力。
答案
参考答案：错
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离心泵具有自吸能力。
参考答案：错
| 选择方框内合适的词，并用其适当形式填空。 | |
2. Have you been to a _____ restaurant? I like going there. 3. We must brush our _____ after getting up every morning. 4. —Which would you like _____, an apple, a banana, or a pear? — A banana. 5. Li Lei is the _____ of all in our class. He exercises every morning. 6. My grandpa's _____ habits are pretty good, so he's very healthy. 7. Lucy often washes her _____ with hot water before she goes to bed. 8. —Have you _____ our teacher is ill? —No, not yet. 9. —How many times have you been to the Great Wall? —____ only. |