猪苓皮黑肉白称为() ["A.金钱眼","B.铁结白肉","C.堂子","D.单门","E.菊花心"]
晶体的营养供应来自(),()。
下列经呼吸道传播的疾病有() ["风疹","流行性感冒","登革热","麻疹","腮腺炎"]
某折线型滑坡资料同案例模拟题9,如滑坡的安全系数取1.2,该滑坡每米长度作用在支护结构上的作用力为()kN。() ["0","30","384","778"]
用探针鉴别麝香,真品可见的现象是() ["A.穿刺法","B.指掐法","C.水试法","D.冒槽","E.火试法"]
万用表判断二极管的方法。