导致感冒的主因是:( )
A.寒邪
B.热邪
C.风邪
D.湿邪
E.暑邪
参考答案:C
—_____ he speak English?
—Yes, he does.[ ]
A. Do
B. Does
C. Is
D. Are
缺失,腭侧基托的厚度应为()。
A.1.0mm
B.1.5mm
C.2.0mm
D.0.5mm
E.2.5mm