气化用煤粒度范围是(),其中()的不应该大于(),()的不应大于()。
参考答案:5-50mm;50-100mm;5%;0-50mm;5%
Nowadays more and more people are advised to arrange for insurance_____that they or their family members need medical treatment.
A.in order
B.in need
C.in case
D.in hope
患儿结核菌素试验72小时后,护士观察局部有硬结,红肿,硬结平均直径22mm,无水泡、坏死,对结果分度正确的是______
A.阴性 B.可疑 C.弱阳性 D.强阳性 E.极强阳性