典型表现为双侧枕部紧缩性头痛的是()
A.紧张性头痛
B.丛集性头痛
C.偏头痛
D.低颅压头痛
E.血管性头痛
参考答案:A
We will arrive_______ New York ______the afternoon of March 3.
A.at, in
B.at, at
C.in, in
D.in, on
进入减速车道时怎样使用灯光?()
A.开启左转向灯
B.开启右转向灯
C.开启危险报警闪光灯
D.开启前照灯