86.A. growing B. breeding C. raising D. flying
A) the sophisticated technology of focusing sounds under water
B) the capability of sound to travel at high speed
C) the unique property of layers of ocean water in transmitting sound
D) low-frequency sounds traveling across different layers of water
A.quite convincing
B.partially true
C.totally groundless
D.rather confusing
A.turned in
B.turned down
C.turned off
D.turned up
A) You will lose both health and wealth. B) You will be hated by your loved ones.
C) You will lose all your friends. D) You may be given more responsibility.
A) You should do the things people ask you to do without feeling guilty.
B) You shouldn’t do the things people ask you to do if you don’t want to.
C) To do things people ask you to do can bring you a lot of joy.
D) To do things for yourself is more meaningful than to do things for others.
A.interval
B.border
C.margin
D.edge
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