通用性最强的运输方式是()运输;运输成本最高的是()运输。
参考答案:公路;航空
智利矿难中,成功营救了33名矿工,创造了被困69天无一人伤亡的人间奇迹,其中一个重要原因是矿井内预防工作到位.
(1)井下为矿工配备了基本的清理设备,能保证被困矿工有一个基本的______.
(2)井内有通风口和饮水设备,预先存有罐头、牛奶等应急物资.这为被困矿工生存提供了必需的______、______、______.
(3)一名矿工升井后,还诙谐地把在地下度过的两个多月比喻是睡了一觉.可见矿工得救除了有良好的心理承受能力外,还得益于井下有适宜的______.
用括号内所给动词的适当形式填空。
小题1:My father often _________(try) Bejing Duck in the restaurant.
小题2:Please stop talking. The baby ___________(sleep).
小题3:_______ this key ring _________(belong) to the little boy?
小题4:Mary enjoys________(share)her toys with her friends.
小题5:The Greens __________ (learn) Chinese in the room at the moment.
小题6:It takes Madee ten minutes _______ (climb) a ladder _______(get) into her house.
小题7:Why not ________(take) them to the sports centre?
小题8:Neil would like ________(visit) the Palace Museum tomorrow.
小题9:Mother makes the girl ________(play) the piano all day long.