问题
单项选择题 B1型题
促进局部血液循环的是（）
A.1～10Hz
B.50Hz
C.100Hz
D.50～100Hz
E.150～200Hz
答案
参考答案：D
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促进局部血液循环的是（）
A.1～10Hz
B.50Hz
C.100Hz
D.50～100Hz
E.150～200Hz
参考答案：D
| 用方框中所给单词的适当形式填空。 | |
2. John is very ______________. He has big arms and long legs. 3. Look at _____________ black shoes over there. 4. I have two _____________ in my hand. 5. The man _____________ young in that blue shirt. |