问题
多项选择题
柴油机机油按粘度分为（）等几个牌号。
A、8，11，14
B、16，20
C、6D，6，8D
D、10，15
E、6，10
答案
参考答案：A, B
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柴油机机油按粘度分为（）等几个牌号。
A、8，11，14
B、16，20
C、6D，6，8D
D、10，15
E、6，10
参考答案：A, B
| 从题后方框内选出能填入空白处的最佳选项。 | |
| A: Good morning, doctor. B: Good morning. (1)_________. A: I'm not feeling well. I have a headache. B: (2)__________. A: About two days ago. B: Come here! (3)___________. Oh, your temperature is OK. Did you sleep well last night? A: Oh, no. B: That's the problem. Don't worry. You've just got a cold. A: (4)________. B: I'm afraid you can't. You should stay at home for a day or two to have a good rest. Take this medicine three times a day. (5)________ A: Thank you, doctor. B: You are welcome.
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