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【单选题】
纵断面某相邻纵坡分别为i1=+3.3%, i2=+1.3%,则( )。A.
ω=0.046
B.
ω=-0.02
C.
ω=0.02
D.
设凹形竖曲线
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】下列关于维生素D缺乏性佝偻病的骨骼改变的描述中,不正确的是
A.
颅骨软化多见于3~6个月婴儿
B.
腕踝畸形多见于6个月以上婴儿
C.
生后10~12个月后出现方颅
D.
1岁左右出现肋膈沟
E.
1岁半后前囟仍未闭合
【单选题】From the information in the passage, it can be concluded that the United States______.
A.
wanted to build a canal because it was considering starting a war
B.
felt that building a canal through Panama was worth the risk of ruining relations with Colombia
C.
believed that a canal through Nicaragua would be profitable
D.
had lost the Spanish-American War
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