He was ill , ______he still went to school on time.[ ]
A. but
B. and
C. or
D. /
答案:A
对于妊娠期心脏病患者,以下哪项不是早期心衰体征
A.休息时心率大于110次/分B.休息时呼吸大于20次/分C.轻微活动后有胸闷、气急及心悸感D.肝脾大、有压痛E.阵发性夜间呼吸困难
手势的总体原则?