研究发现:女孩在语言能力测验中占优势,而男孩在空间能力、数学能力测验中占优势。这反映了男女智力在()方面的差异。
A.性别
B.发展速度
C.发展水平
D.类型
参考答案:D
The reason _____ he explained to the teacher was _____ he had forgotten to memorize the new words.[ ]
A. why; because
B. which; because
C. /; that
D. why; that
盘点的误差应该是百分之零点几的概念,1%就很大了,最理想值准确的是()
A.0.05-0.09
B.0.04-0.08
C.0.05-0.08
D.0.06-0.09