煤矿许用炸药的安全等级越高,其安全性()。
A.越高
B.越低
C.不变
参考答案:A
Read and order. 你能把下面句子重新排列成一段通顺的对话吗?
( ) They are in the woods.
( ) What are you doing?
( ) I am watching my classmates.
( ) Where are they?
( ) No, they aren't. They are picking up leaves.
( ) Are they catching butterflies?
女,65岁,农民。高血压病史12年,不规则服药,某日晨起突发头痛,意识不清,35min后送至医院,体检:昏迷,血压220/120mmHg,双眼右侧凝视,左足外旋位。
最可能的病变部位是()
A.右侧脑干
B.右侧半球表面
C.右侧半球深部
D.左侧半球表面
E.左侧半球深部