问题
单项选择题
治疗鲜红斑痣的激光波长范围宜在（）。
A.400～480nm
B.480～620nm
C.600～730nm
D.750～860nm
E.860～1000nm
答案
参考答案：B
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治疗鲜红斑痣的激光波长范围宜在（）。
A.400～480nm
B.480～620nm
C.600～730nm
D.750～860nm
E.860～1000nm
参考答案：B
| 从方框中选出适当的句子补全对话 （其中有两项是多余的）。 | |
| Alice: Hello, Kate! Kate: Hello, Alice! Where are you? Alice: (1)______ Kate: Oh. what are you doing there? Alice: (2)______ Kate: (3)______ Alice:It's sunny. I'm playing with my cousin in the garden now. Kate: (4)______ Alice: Yes. How's it going with you? Kate: Terrible. Alice: Why? What are you doing now? Kate: I'm watching TV. (5)______ And the weather is rainy and cold here. Alice: Oh, that's too bad.
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