下列属于经胃肠道传染的疾病是
A．流行性腮腺炎B．脊髓灰质炎C．流行性乙型脑炎D．流行性脑脊髓膜炎E．斑疹伤寒
参考答案：B
is known to us all is the old scientist, for whom life was hard in the
past, still works very hard in his eighties.
A．What; what
B．What; that
C．That; what
D．As; that
有推动心脏搏动功能的气是（）
A.卫气
B.营气
C.宗气
D.元气
E.中气
