运动性晕厥是由于什么供应不足,引起的什么现象()
A.脑部供血
B.供血太多
C.一时知觉丧失现象
D.突发性
参考答案:A, C
When did a mass move to the suburbs begin in the U.S.()
A.In the 1960s.
B.In the 1940s.
C.In the 1970s.
D.In the 1950s.
通过测定膨胀度来鉴定中药材的有()
A.葶苈子
B.决明子
C.五倍子
D.哈蟆油
E.蟾酥