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【单选题】
花式绕桩场地,桩距分别是( )。A.
50cm、80mm、120cm
B.
120mm、50cm、80cm
C.
50mm、80mm、120mm
D.
0.5m、0.8m、1.2m
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【单选题】There’s some doubt __________he’ll keep his promise.
A.
whether
B.
when
C.
that
D.
which
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【简答题】Why does most of the world travel on the right side today? Theories differ, but there’s no doubt Napoleon was a major influence. The French have used the right since at least the late 18 th century. S...
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