二尖瓣后叶关闭不全()
A.瘀点
B.充血性皮疹
C.瘀斑
D.血肿
E.小红痣
参考答案:B
It was through Xiao Li ____ I got to know Xiao Wang.
A.who
B.whom
C.how
D.that
(如图所示)这个符号的开关控制什么装置?()
A.后风窗玻璃除霜或除雾
B.前风窗玻璃刮水器及洗涤器
C.后风窗玻璃刮水器及洗涤器
D.前风窗玻璃除霜或除雾