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【多选题】
符合接地装置的敷设基本要求的是（）。A.
符合GB50194《建设工程施工现场供用电安全规范》的规定
B.
人工接地体的顶面埋设深度不宜小于0.5m
C.
人工垂直接地体宜采用热浸镀锌圆钢、角钢、钢管、螺纹钢，长度宜为2.5m
D.
人工水平接地体宜采用热浸镀锌的扁钢或圆钢。圆钢直径不应小于12mm
E.
扁钢、角钢等型钢的截面积不应小于90mm2，其厚度不应小于3mm；钢管壁厚不应小于2mm
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【单选题】The phenomenon of pre-nups______.
A.
shows the improvement of people's life
B.
shows that people nowadays are more realistic than romantic
C.
is the product of women liberation
D.
shows that people don't believe each other
【单选题】The cellphone, a device we have lived with for more than a decade, offers a good example of a popular technology's unforeseen side effects. More than one billion are【1】use around the world, and when a...
A.
of
B.
for
C.
in
D.
by
【单选题】Deaths from Ecstasy are sometimes caused by ______.
A.
people with pre-existing conditions
B.
too much fluid in the body
C.
overheating of the body
D.
all of the above
【单选题】A device used to enlarge the size of an existing bore hole, having teeth arranged on its outside circumference to cut the formation as it rotates is a(n) ______.
A.
enlarger bit
B.
casing bit
C.
hole opener
D.
casing opener
【单选题】如图是郑州市某天的温度随时间变化的图象,通过观察可知下列说法错误的是( )
A.
这天 15点温度最高
B.
这天 3点时温度最低
C.
这天最高温度与最低温度的差是 15度
D.
这天 21时温度是30度
【单选题】By the late 7 th century, became the dominant religion in England.
A.
Celtic Christianity
B.
Anglo - Saxons Christianity
C.
Germanic Christianity
D.
Roman Christianity
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