敦煌壁画中观音的手型有多少（）
A、45.0
B、55.0
C、65.0
D、75.0
参考答案：A
The two pictures look the same to me. It's hard to ________ one from the other.[ ]
A. speak
B. say
C. talk
D. tell
一期梅毒临床主要皮损为（）
A.软下疳
B.硬下疳
C.斑疹
D.结节
E.斑块
