题目

如图所示，实验桌上备有实验器材：电阻丝、电流表、横截面积相同的电阻丝带有金属夹的导线，其中、、电阻丝的长度相同．下列电路说法正确的是A. 选用和号电阻丝，可探究导体电阻大小跟横截面积是否有关B. 选用和号电阻丝，可探究导体电阻大小跟导体材料是否有关C. 若将和号电阻丝并联接入电路，通过号电阻丝的电流较大D. 若将和号电阻丝串联接入电路，通过两根电阻丝的电流相同读一读，根据短文选择正确答案。The USA is the fourth largest country in the world. It’s smaller than Russia, Canada and China. Washington DC is its capital. But it is a quiet city. New York is the biggest city in America and it’s one of the biggest cities in the world. It is in the east of the USA and at the mouth of the Hudson River（哈德逊河）. A large part of the city is on Manhattan Island（曼哈顿岛）, a big island in the river. New York has a larger population（人口）than Washington DC. In New York we can see famous statue, the Statue of Liberty（自由女神像）.【1】The USA is the ______largest country in the world. ( )A. secondB. thirdC. fourth【2】New York has a ______ population than Washington DC. ( )A. largerB. smallerC. large【3】A large part of New York is on______. ( )A. an islandB. the seaC. the lake【4】New York is one of the________ cities in the world. ( )A. quietestB. biggestC. oldest