【单选题】It's not always easy for the public to see _____________ use a new invention can be of to human life. [ ]
【简答题】We know it's easy to say, but you'll soon start to see and feel the benefits of dieting. Keep ______ it and you will succeed.
【单选题】With no better way to express feelings of love and ____, it's easy to see why everyone turns to the flower shop on Mother's Day. [ ]
【单选题】由于航空运输业的普及,导致乘务员紧缺,超劳现象较为普遍,说明乘务员的
【单选题】下列哪种元素是合成甲状腺素的重要原料()
【单选题】It's not easy to see much difference between day and night because ______.
A.
city-dwellers are obliged to adopt a wholly unnatural way of life
B.
the sun was hidden from view by tall buildings
C.
the noise made by traffic never stops
D.
large modern cities are too big to control