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【判断题】
我国铁路线路共分为三个等级，即Ⅰ级、Ⅱ级、Ⅲ级。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】The convenience of modern freeways, railways and airplanes makes travel in America as easy as ______.
A.
pie
B.
bread
C.
soup
D.
wine
【单选题】Modern sonar makes it possible to ____ an underwater submarine.
A.
communicate
B.
sink
C.
search
D.
locate
【单选题】As is known to all，________life in ________ modern world is easier in some ways than ________ life our grandparents lived.
A.
the；a；the
B.
a；the；the
C.
/；the；the
D.
the；/；the
【单选题】THe modern transportation makes our life ____ than before.
A.
more convenient
B.
convenient
C.
the most convenient
D.
convenienter
【简答题】Modern life makes people suspicious and friendly.
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