急性心包炎心包渗液时最突出的症状是()
A.心前区痛
B.发热
C.呼吸困难
D.咳嗽
E.发绀
参考答案:C
— Could you give me a ride to the railway station? I’m going to be late.
— I’ll take the nearest route. You ________ be in time for the train.
A.shall
B.can
C.may
D.need
()打印机拥有打印成本低、噪音低的特点,但难以进行彩色打印。
A.针式
B.喷墨
C.激光
D.热敏