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【单选题】
关于校园绿地设计,不正确得一项是什么?A.
绿地率不低于百分之十
B.
树种应选择无毒无污染树种
C.
教学楼的绿化要保证教室采光
D.
大门内外的绿化应以装饰绿地为主
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皮皮学刷刷变学霸
举一反三
【单选题】We drop a piece of metal into a jar full of water, the metal will float if it weighs less than______.
A.
an equal amount of silver
B.
an equal amount of gold
C.
all the water in the jar now
D.
the water that leaves the jar
【单选题】Transportation in the U.S. Railroads are paths of parallel metal rails that allow a wheeled vehicle to move more easily by reducing friction. Iron mils were first used in the early 1800s to guide hors...
A.
Y
B.
N
C.
NG
【简答题】A. cycled B. drove C. wheeled D. fled
【单选题】This kind of metal ______ well，and therefore the metal stick ______ into halves easily. [ ]
A.
is cut，is cut
B.
cuts，cuts
C.
is cut，cuts
D.
cuts，is cut
【简答题】间歇操作的设备要排列工艺 和 。
【单选题】Metal-wheeled chariots are the_________of the tanks of modern warfare.
A.
prototype
B.
original
C.
model
D.
sample
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