女性,50岁。头痛1年余。实验室检查正常。
你认为应做哪些检查()
A.CT
B.MRI
C.TCD
D.DSA
E.MRA
参考答案:A, B
There are two roads______ to the park along the river. You can take _____ of them.
A.leading ;either
B.led;both
C.leading;neither
D.to lead;all
Ethernet的MAC地址长度为______位。