HIV的蛋白中特异性最高的是()
A.gp41
B.gp120
C.p7
D.p17
E.p24
参考答案:E
Our computer ________ at nine this morning and we haven't been able to do anything. [ ]
A. has broken down
B. crashed
C. has gone wrong
D. was out of order
正式晚宴妆的妆面要求(),能掩盖和矫正面部的不足。
A、凹凸结构明显
B、精致洁净
C、清新淡雅
D、自然柔和