Which is heavier, a pound of cotton or half a kilogram of gold?

Being as he is a perfect gentleman, Tommy is well known for his polite behavior even around strangers.

An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.

Manila is a well-known （）rope.

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

下列关于英美法系的表述，能够成立的是（ ）。A．英美法系又可以称为法典法系B．我国澳门特别行政区的法律属于英美法系C．英美法系国家中，有些国家实行不成文宪法制D．英美法系国家的法律源于罗马法

An uncontrolled flow of gas, oil, or other well fluids into the atmosphere is called a（）.

教师的知识结构中，小学英语教师所拥有的英语学科知识属于()。

"After Apple - Picking" is a well - known poem written by（）

The purpose of a bilge well is to（）.

A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.

（）generally indicates that a gale or storm is approaching.