设函数y=2x+sinx,则y'=
我就担心丧失机会。不抓呀,看到的机会就丢掉了,时间一晃就过去了。()
ThethreePuritantraditionsare________.
ThethemeofThanksgivinghasalwaysbeen________.
InBritain,ministersareappointedbytheQueenontherecommendationof________.
Theteachertoldusthefact_______.