(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
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_________as one of the most important inventions of the time, the computer helps people living in different countries to do a lot of things.
#88255
A
Knowing
B
Known
C
To know
D
Know
______ around the Water Cube, we were then taken to see the Bird’s Nest.
#98490
A
Having shown
B
To be shown
C
Having been shown
D
To show
It rained heavily in the south，________ serious flooding in several provinces.
#95006
A
caused
B
having caused
C
causing
D
to cause
I would rather________Professor Smith and I would rather you________for him at once.
#88477
A
invite；sent
B
invited；send
C
inviting；sending
D
invite；sending