舌绛少苔而润，属于
A．表热证
B．血瘀证
C．阴虚火旺
D．营血有热
参考答案：B
— He has been playing computer games these weeks.
— It’s no __________ he didn’t do well in the test this time.
A．surprise
B．wonder
C．matter
D．problem
使用非金属外壳的携带型仪器时，外壳应（）
A、接地
B、与地绝缘
C、加以屏蔽
