现行《国际船舶载重线公约》规定，《国际载重线证书》应由()负责签发。①主管机关对悬挂非缔约国国旗的船舶；②主管机关正式授权的组织和个人；③主管机关委托的另一缔约国政府；④主管机关。
TLV-TWA阈限值指：
Thisdiploma(毕业文凭)________thatyouhavecompletedhighschool.
中国共产党在过渡时期总路线的主体是____________。
Thedestructionofthetwintowers_________shockandangerthroughouttheworld．
设函数，其中n为正整数,则f'(0)=()
Many_______willbeopenedupinthefutureforthosewithauniversityeducation．
Becareful,_______you'llfalldown.
Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
Iwon't________thosechildrenmakinganoiseinmyhouse!
Inordertolivethekindoflifewewantandtobethepersonwewanttobe，wehavetodomorethanjust________withevents．
Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.