With which of the following would the author be LEAST likely to agree？
A. Children naturally and easily learn mathematics.
B. Children learn to add before they learn to subtract.
C. Most people follow the same pattern of mathematical development.
D. Mathematical development is subtle and gradual.
查看答案
What did the police do to find Carol？
A. They asked Gerard Croiset for help.
B. The let people see her pictures.
C. They put her pictures in newspapers.
二元函数f(x，y)在点(xo，yo)处的下面4条性质：(I)连续；(Ⅱ)两个偏导数连续； (Ⅲ)可微；(Ⅳ)两个偏导数存在，则()．
在两级成本核算体制下，“厂部基本生产成本明细账”应按()设置专栏。
A. 成本项目
B. 费用明细项目
C. 生产车间
D. 产品名称
"Club feet" (Line 1, Para. 1) probably means______.
A. big feet
B. one foot
C. deformed feet
D. feet without toes
微信支付 
支付宝支付