高中英语和数学题急~~~~~~~~~
1.()himbysurpriseandhehadnotimetothinkofanexcuse.
A.tookB.seizedC.heldD.caught
2.Chinahasapopulationof1.3billion,()itthelargestcountryintheworldbypopulation.
A.makingB.madeC.makes.D.hasmade
3.()globalwarming,thosepresentattheinternationalmeetingalsodiscussedotherissues.
A.InspiteofB.ButforC.ApartfromD.Exceptfor
4.()herselftoscience,thegreatscientisttooklittlenotice()thehonorsgiventoher.
5.-Howcomeasimplemeallikethiscostsomuch?
-Wehave()inyourbillthecostoftheteapotyoubrokejusenow.
A.addedB.includedC.obtaonedD.charged
有能力者把选项的每个单词意思翻译一下,还有句子.
1.f(x)=2sin(2x+30°)+2满足f(x)=1且X属于[-180°,180°]的X的集合.
2.cos2x/sin(x-45°)=-(根号2/2),求cosx+sinx的值
需要解题过程
谢谢了.