蒸发器氨气出口管路应设置()超高报警。
参考答案:压力
女性,36岁,主诉头晕、乏力,3年来月经量多,浅表淋巴结及肝、脾无肿大,血红蛋白58g/L,白细胞8.0×109/L,血小板185×109/L,血片可见红细胞中心淡染区扩大,网织红细胞计数0.005。
寻找病因应首选下列哪项检查()
A.放射性核素骨扫描
B.妇科检查
C.51Cr红细胞半衰期测定
D.钡剂灌肠
E.胸部X线检查
—Don’t you think there are too many cars in our city?
—I really think so. If there are ___ people driving, there will be ___ pollution.[ ]
A. less; less
B. fewer; fewer
C. less; fewer
D. fewer; less