氯化镁
参考答案：W
解析：[精解] 归税号2827.3100。根据28章税目条文，按具体品目列名归类。
_______ we do morning exercises every day obviously _______ us good.
A．That; do
B．When; do
C．What; does
D．That; does
肺动脉栓塞描述正确的为
A．栓子来源于肺内肺循环
B．右室前壁明显增厚
C．右室运动增强
D．右房无明显改变
E．右房室内径明显增大
