菟丝子的功效有
A．补阳益阴
B．固精缩尿
C．明日止泻
D．安胎
E．生津
参考答案：A,B,C,D,E
读一读，排列顺序。
( ) Do you see my glasses?
( ) Those are not my glasses.
( ) Look! They are on the table.
( ) No. Are they on the TV?
( ) Oh, I can see them now.
使人耳产生疼痛的声音声压是（），称为人耳的“痛阈”。
A.2×106Pa
B.2000Pa
C.200Pa
D.20Pa
