关于精馏塔塔压差高的原因,下列叙述不正确的是()。
A.液泛
B.淹塔
C.冻塔
D.回流量过小
参考答案:D
词汇运用(10分)
小题1:Mike and Sally are my ______(偶像)。
小题2:Most children don’t like to wear ________(眼镜)
小题3:My brother likes watching football___________(比赛)very much.
小题4:Her sister loves ___________(跳舞) very much.
小题5:He often_______(fly) kites at the weekends.
小题6:_______(be) your brother happy today?
小题7:Are they his new ___________(classmate)?
小题8:What shall we do? What about________(walk) the dog?
小题9:Let’s________(play) football in the playground..
小题10:Do you________(real) know the young woman, Sandy?
牙体缺损修复时增强修复体抗力形的措施中不包括
A.避免应力集中
B.增大牙尖斜度
C.选用强度高的材料
D.金瓷衔接区远离咬合点
E.充足的修复空间