下列关于肉桂对心血管系统的作用，不正确的是（）
A.强心
B.改善心肌血流供应
C.促进心肌侧支循环开放
D.扩张血管
E.升高血压
参考答案：E
用所给词的适当形式填空。
Summer 1__________ (come) after spring. It is the 2__________ (hot) season. It often rains, sometimes
quite 3__________ (heavy). The crops grow very 4__________ (quick). Many people love this time of year,
it's good for sports. I often go 5__________ (swim) in summer.
患者阵发性呼气性呼吸困难，烦躁不安，持续5h。体检：双肺满布哮鸣音，有肺气肿征，心率130/min，心律齐，无杂音，血压 110/70mmHg，抢救措施中哪一项一般不用
A．静脉滴注糖皮质激素B．静脉注射氨茶碱C．吸氧D．静脉注射强心药E．生命体征监护
