公铁两用桥，公路在铁路桥上面，公路下面的钢梁顶部杆件的油漆必须（）。
A、耐晒
B、耐酸
C、耐碱
D、耐潮、耐酸
参考答案：D
.
Orange-uniformed emergency workers are searching the smoking ruins for three people _______ buried when the structure was shaken to the ground.
A．to fear
B．fearing
C．feared
D．fear
可以治疗小儿痱毒，暑热口渴的药是 ( )
A．金银花露B．小儿咳喘灵颗粒C．龙牡壮骨颗粒D．夜尿宁丸E．启脾丸
