Insectpestsareamongtheleadingcausesofcropfailure.
Thefactthatsomanypeoplestillsmokeinpublicplace_______thatwemayneedantionwidecampaigntoraiseawarenessoftheriksofsmoking.
AlthoughtheCarbon14methodofdatingoldobjectsisnotfoolproof,itisthebestmethodavailableatpresent
Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.
2014年8月3日16时30分云南省昭通市鲁甸县发生6.5级地震，造成了房屋倒塌，人员伤亡，桥梁、公路、水利水电工程等设施的破坏，此统称为地震________。之后，又引发了山地滑坡、泥石流等，次统称为地震________。
