下列小儿头颅数值,哪项不正确?()
A.新生儿平均为34cm
B.6个月时40cm
C.1岁时46cm
D.2岁时48cm
E.3岁时50cm
参考答案:B, E
—Don't play near the classroom, please.
—_____ [ ]
A. Yes, I do
B. Sorry, I won't
C. No. I don't
D. Not at all
电磁流量计能对介质为清洁液体、泥浆蒸气、气体的物质进行精确计量。( )