_____ basic first-aid techniques will help you respond quickly to emergencies.
#31190
A
Known
B
Having known
C
Knowing
D
Being known
推荐题目
He had no sooner finished his speech________ the students started cheering.(2011·辽宁)
#30453
A
since
B
as
C
when
D
than
I thought Father would be better, but ______it is, he is getting worse, which makes me more worried.
#33218
A
before
B
as
C
because
D
after
—You seem to have known Dr. Ken for a long time.—That’s true. ________ he joined our club years ago.
#34031
A
Since
B
Until
C
When
D
If