临床上怀疑急性脑中风宜选择的检查方法有()
A.颅骨平片
B.血管造影
C.CT
D.MRI
E.脑室造影
参考答案:C, D
解析:急性脑中风需要鉴别出血或梗死,CT与MRI比较适用。
液压马达的每转排量增大时,其输出扭矩不变。
The ( ) were carefully inspected before we issue the Phytosanitary Certificate.
A.animal products B.plant productsC.machines D.electronic toys