The gas that is lighter than air and is often used in balloons for floating is ___. A. Helium B. Oxygen C. Carbon dioxide D. Nitrogen 相关知识点: 试题来源: 解析 A。解析:本题考查氦气的特性以及词汇辨析。氦气比空气轻,常被用于使气球漂浮。B选项“Oxygen”氧气没有这个特性;C选项“Carbon ...
Which gas is lighter than air? A. 化于金展转系查别增心才化于金展转系查别增心才Carbon monoxide化于金展转系查别增心才化于金展转系查别增心才 B. 次族火级代片断家集料众不要完管广志她相次族火级代片断家集料众不要完管广志她相Methane次族火级代片断家集料众不要完管广志她相次族火级代片断...
A. The gas is heavier than air. B. The gas is as heavy as air. C. The gas is lighter than air. D. The gas has the same weight as air. 相关知识点: 试题来源: 解析 C。本题考查对实验结果的理解。实验表明气体比空气轻,A 选项气体比空气重错误;B 选项气体和空气一样重错误;D 选项气体...
___ with a gas which is lighter than air, a balloon can float in the air. A. When filling B. When filled C. Filling D. Having filled 查看答案和解析>> 科目:高中英语来源:题型: 1. When filled with a gas lighter than air,a balloon can___in the air. A.fly B.float C.wander D....
AUTONOMOUS INTERIOR AERIAL DRONE EQUIPPED WITH CONTAINERS FOR GAS THAT IS LIGHTER THAN AIRAn autonomous indoor aerial drone called ICARE allowing to supervise especially people, animals, property in enclosed or semi enclosed .cndot. housing, office, trade, warehouse .. The drone can be coupled to...
更多"when filled with a gas___ lighter than air, a balloon becomes buoyant and rises.a.muchb"相关的问题 第1题 as regards our foreign policy, it is no less our interest ___ our duty to maintain the most friendly relations with other countries. a.as b.to c.than d.that 请帮忙给出...
___ with a gas lighter than air, a balloon can float in the air. [ ] A.When filled B.Filling C.Having filled D.When filling 相关知识点: 试题来源: 解析 答案:A 结果一 题目 ___ with a gas lighter than air, a balloon can float in the air.[ ]A. When filledB. FillingC. ...
Also, CNG is safer than other fuels in the event of a spill because natural gas is lighter than air and disperses quickly when released. CNG may be found above oil deposits or may be collected from landfills or wastewater treatment plants where it is known as biogas. CNG is produced by ...
百度试题 结果1 题目【题目】When filled with a gas lighter than air,a balloon can__in the air. A.fly B.floatC.wander D.sail 相关知识点: 试题来源: 解析 【解析】B。
aCarbon monoxide (CO) is an odorless, colorless, lighter-than-air, nonirritating gas that interferes with the delivery of oxygen throughout the body 一氧化碳 (CO) 是无气味的,无色,轻比空气, nonirritating干涉氧气交付在身体中的气体[translate]...