A.were
B.weren ’t
C.used
D.didn ’t
A.relent
B.relative
C.relation
D.related
A.praises
B.objects
C.criticises
D.approves
A.I don’t know.
B.Who cares?
C.It doesn’t matter.
D.Sure, go ahead.
A.finds it easy to relax with the new students
B.is very friendly
C.welcomes her warmly to the university
D.doesn’t seem to find the students interesting
A、cannot help following
B、can not but to follow
C、cannot help follow
D、can not but follow
A、查表法
B、公式p±1.645Sp
C、公式p±2.58Sp
D、公式p±1.965Sp
E、公式p±t0.05,1.79Sp
A.INSERT 语句出现了语法问题
B.name字段没有指定默认值,且添加了NOT NULL约束
C.name字段指定了默认值
D.name字段指定了默认值,且添加了NOT NULL约束
A.I have three friends
B.Mike,
C.Mike, Billy and Sandy
D.没有错误