Tom was very _________to all those who took the trouble to help him out.
A. graceful
B. grateful
C. regretful
D. wonderful
第1题:
Dick: Who's that speaking?
Tom: This is Tom ___________.
A、talking
B、addressing
C、speaking
D、saying
第2题:
优级纯、分析纯、化学纯试剂的代号依次为( )。
A、GR、CP、AR
B、GR、AR、CP
C、CP、GR、AR
D、AR、GR、CP
E、AR、CP、GR
第3题:
Tom's father wants __________him.
A.making a doctor
B.a doctor made from
C.to make a doctor of
D.to make a doctor by
第4题:
There’s a man at the reception desk who seems very angry and I think he means____ trouble.
A) making B) to make
C) to have made D) having make
选B
mean to do打算 固定搭配
第5题:
A fetched B. allowed C. expected D. took
第6题:
6、熔体析晶时的成核势垒为ΔGr*,其临界晶核界面能为γLSA*,则ΔGr*与γLSA*的关系为()。
A.△Gr*=3γLSA*
B.△Gr*=γLSA*
C.△Gr*=(1/3)γLSA*
D.△Gr*=(2/3)γLSA*