增大Cυ值,频率曲线()。
A.升高
B.降低
C.变陡
D.变缓
参考答案:C
The Chinese government has overcome problems of population and economy to ________ its “nine years of compulsory education”.
A.abolish
B.reserve
C.accelerate
D.accomplish
关于稳定型心绞痛的临床特点,正确的是()。
A.心前区刀割样疼痛
B.持续数分钟
C.前胸压榨性疼痛
D.休息或用硝酸酯制剂后消失
E.可放射至心前区和左上肢尺侧