【单选题】________ the difficult things happened when I can't adjust myself? [ ]
【简答题】A.C name,Credit_balance-limit B.C name,limit-Credit_balance C.C name,limit,Credit_balance D.C name,Credit_balance
【单选题】听力原文:What is putting things together that seem to belong together? (15)
【简答题】《()》是我国现存最早的《内经》注本,又名《黄帝太素》,简称《太素》。
【单选题】What does the sentence 'The air helps purify the water' illustrate?
A.
The ecological balance.
C.
The earth's limited resources.