球团炉引煤气应具备的先决条件是要有足够压力的()。
A.水
B.风
C.蒸汽
参考答案:C
用括号内所给动词的适当形式填空。
小题1:When I got home, my parents ______________ (discuss) the traveling plan happily.
小题2:The students will not go to the Summer Palace if it ______________ ( rain) tomorrow.
小题3:He ______________ (not realize) the importance of learning English until two years ago.
小题4:Many people are against ______________ (smoke) in public places.
小题5:The queen refused ______________ (accept ) an interview when she went to Africa.
小题6:I hear that you ______________ (lie) in bed for a lot of days. Are you feeling better now?
小题7:---Where is Jack? --- He ______________ (ride) an indoor roller coaster over there.
小题8:I like reading the book very much. I ______________ (renew) it in a week.
农伯格将弗洛伊德的精神分析学说应用于教育实践中,创办了著名的()