延续性血栓的形成顺序是
A.白色血栓→混合血栓→红色血栓B.红色血栓→混合血栓→白色血栓C.红色血栓→白色血栓→混合血栓D.混合血栓→白色血栓→红色血栓
参考答案:A
(2013·河南十校三次联考)She wanted to tell him that she didn't want to do that, but she didn't know how to ________ it.
A.take
B.put
C.carry
D.get
安全阀的阀瓣开启高度大于等于1/4喷嘴直径,为()安全阀。
A、杠杆式
B、全启式
C、微启式
D、先导式