哮喘患者突然出现胸痛，伴发严重呼吸困难、大汗、脉速而弱，首先应考虑（）
A.自发性气胸
B.心绞痛
C.肺炎
D.肺栓塞
E.主动脉夹层
参考答案：A
It was raining heavily. Little Tom felt cold, so he stood ______ to his mother.
A．close
B．closely
C．closed
D．closing
辛弃疾的写作风格是什么？
