With the development of science,more new technology      to the fields of IT.
#104546
A
has introduced
B
is being introduced
C
is introduced
D
was introduced
推荐题目
 Visitors              not to touch the exhibits.
#99045
A
will request
B
request
C
are requested
D
are requesting
We had wanted to come to see him, but we ____ no time.
#103720
A
had
B
had had
C
would have
D
would have had
—I’d like a pen which _________ well.—Will this one _________?
#102423
A
is written;work
B
writes; work
C
is written; do
D
writes; do
There happened a murder case _________ the man ___________the mayor.
#101720
A
linked; with
B
linking; to
C
connected; with
D
joined; to