血型是靠检查()来决定的。
A.红血球
B.白血球
C.血小板
参考答案:A
He is used to to his office in spite of bad weather.
A.to walk
B.walking
C.walked
D.has walked
婴儿气管支气管分叉处在()
A.T1
B.T2
C.T3
D.T4
E.T5