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【单选题】
DSC单频通险呼叫尝试是在中频,高频或甚高频频带中的一个频率上,连续发送____DSC遇险呼叫。A.
三次
B.
四次
C.
五次
D.
二次
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举一反三
【单选题】Henry Kelly's research on Valentine's Day ______.
A.
is a widely accepted explanation
B.
is well-based on conclusive evidence
C.
is a reasonable speculation
D.
is just a wild and unreliable guess
【单选题】Kelly’s main job is _____ the message about protecting the environment.
A.
helping spread
B.
to help spreading
C.
to help spread
【单选题】—What was Kelly Chan’s concert? —It __________ everyone present.It’s a pity you’ve missed it.
A.
represented
B.
satisfied
C.
shocked
D.
delighted
【单选题】—Kelly, who’s the girl _____ glasses in the photo? —It’s me. I used to wear glasses and have long hair.
A.
by
B.
of
C.
on
D.
with
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