问题
填空题
小容量喷雾的药物利用率可达到（）%。
答案
参考答案：70%
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小容量喷雾的药物利用率可达到（）%。
参考答案：70%
| 从方框内选出能够替换句中划线部分的选项。 | |
( ) 2. It's crucial that we study English well. ( ) 3. She's anxious because of the test. ( ) 4. Xiao Ning found garbage in front of the house. ( ) 5. Don't bother your father. He is busy with his work now. |