题目

The place __ the bridge is supposed to be built should be ____the cross-river traffic is the heaviest . A. which; where    B. at which ;which        C. at which ;where        D. which ;in which 答案：C. 解析: “he bridge is supposed to be built”是定语从句，修饰名词place。“he cross-river traffic is the heaviest”组在句中做表语，表语从句引导词中没有in which，两空结合下列叙述正确的有（ ）A．布朗运动不是分子运动，但说明了固体微粒内的分子在做无规则运动B．当分之间的距离逐渐增大时，分子间的引力和斥力都同时减小C．固体微粒越小，温度越高，布朗运动就越明显D．温度升高，物体内的每一个分子的热运动速率都增大E．物体的内能跟物体的温度和体积有关。