设y=lnx，则y’=（）。
参考答案：
解析：
I've tried very hard to improve my English.But by no means ________ with my progress.
A．the teacher is not satisfied
B．is the teacher not satisfied
C．the teacher is satisfied
D．is the teacher satisfied
ZTEZXV10W901无线控制器默认可管理（）个FitAP。
A、1024
B、236
C、312
D、2048
