(2013·福建，22)________ basic first－aid techniques will help you respond quickly to emergencies.
#89233
A
Known
B
Having known
C
Knowing
D
Being known
推荐题目
______ another button and your meal is prepared and heated for you.
#97696
A
If you press
B
To press
C
Press
D
Pressing
Now that there are still some problems remaining ______, we have to work extra hours tonight
#91164
A
solved
B
solving
C
to be solved
D
to solve
The news of ________ greatly made us surprised a lot as he was indeed very excellent.
#89163
A
not his having elected
B
not his being elected
C
his not being elected
D
his not having elected