一期止血筛选试验（）
A.束臂试验
B.凝血酶时间测定
C.KPTT试验
D.BT
E.CT
参考答案：D
You can find whatever you need at the shopping centre, __________ is always busy at the weekend.
A．that
B．where
C．what
D．which
双晶类型
