【单选题】商品常发生的物理机械变化主要有商品的挥发、溶化、熔化、渗漏、串味、冻结、沉淀、破碎与变形等。
【简答题】It makes me _______ in humanity.
【单选题】It was John's mother who ______________.
A.
a. wanted to work in the shop
B.
b. wanted John to work in the shop
C.
c. liked working in shops
【判断题】物品常发生的物理机械变化主要有挥发、溶化、熔化、渗漏、串味、冻结、老化、沉淀、破碎与变形。
【单选题】It is not easy to tell the true__________the false.
【判断题】合金渗碳钢渗碳后都要经过二次淬火+低温回火。
【简答题】It is reported that four people were seriously injured in the accident. (report)5.It is reported that four people were seriously injured in the accident. (report)
【单选题】It is possible...
A.
the country has developed....
B.
the country has the....
C.
the social classes....