电子血压计允许脉搏数的误差是
A.±1%
B.±2%
C.±5%
D.±8%
E.±10%
参考答案:C
找出句中错误并改正。
( )1. What about green one?
A B C D
( )2. Eleven plus eight are nineteen.____
( )3. What’s do you like?
( )4. How much balls can you see in the box?
( )5. That a good idea.
( )6. What that in English?
简述课程评价发展的特点。