煤中灰分越高,可燃成分相对(),发热量()。
参考答案:越少;越低
Studies show that Americans chat on their phones for more than five hours a month, _____ Europeans.
A.as much as twice
B.twice as much as
C.as much twice as
D.as twice much as
患儿女,7岁,因“发热1周”来诊。患儿1周前无明显诱因出现发热,最高达39.4℃,偶有咳痰,无流涕,无寒战等症状,抗生素治疗无效;5~6d前出现口唇红、干燥,双眼红,全身充血性皮疹,皮疹呈向心性、多形性,手指、足趾肿。既往无特殊病史。血常规(3d前):WBC18.46×109/L。ECG:窦性心动过速。
错误的治疗是()
A.采用物理降温法,以恢复正常体温
B.尽早采用阿司匹林和丙种球蛋白,以控制炎症
C.病情严重者可考虑使用肾上腺皮质激素
D.血小板显著增多者加用双嘧达莫
E.根据病情给予对症和支持治疗