注射剂的pH一般允许在()。
A.3~6
B.3~8
C.4~9
D.7~10
参考答案:C
根据不同的场景选择合适的问句或答语。
1. 在问路之前一般要说: [ ]
A. How do you do?
B. Excuse me.
C. How are you?
2. — Where are the dresses? — [ ]
A. This way, please.
B. Here it is.
C. It's beautiful.
3. 你想知道花园里有什么,该如何问?[ ]
A. Where's the garden?
B. What's in the garden?
C. What is the garden?
既镇心定惊,又收敛生肌的药是()
A.珍珠
B.玳瑁
C.朱砂
D.代赭石
E.石决明