有关腔隙性脑梗死的描述错误的是()
A.好发于大脑深部、基底节区
B.皮层支动脉梗塞
C.大小约0.5~1.5cm
D.常多发
E.临床症状可为单纯运动或单纯感觉障碍
参考答案:B
Facts showed that only when they united ______ the strong enemies.
A.could they defeat
B.they could defeat
C.they did defeat
D.had they defeat
往复型阀门气动装置适用于()。
A.闸阀
B.蝶阀
C.球阀
D.旋塞阀