问题

t ______ research intoheart disease and its effects on the body, we do not have adequate substitutesfor the use of animals.
A:refers to
B:related to
C:comes to
D:talks to
B:related to
C:comes to
D:talks to
正确答案是:
同类题型
-Ithink teenagers should not be allowed to get car licenses.-Iagree. They are not _______.
Why are you walking so quickly, Edward—There_____ a talent show in ten minutes.
oner one _____ to the new workingconditions, the better it will be _______ his working efficiency.
I give up.It’s too hard.-Really I______you could make it through.
ired . I’m taking next week off. —______, honey. You do need a break.