The last sentence means that a knowledge of fish sounds can help man to ______.

A． avoid confusion in fishing activity

B． avoid unneeded effort in fish sound studies

C． detect enemy submarines

D． pick up new sounds

[单选题]The last sentence of the text indicates the author’s______.［A］ hatred［B］ affection［C］ stubbornness［D］ rejection

[单选题]In the last sentence of the second paragraph, "the higher places on earth" refers to ______.A． the high mountainsB． the lighter rocksC． the vast oceanD． the great continent

[单选题]A．s used in the last sentence, the phrase "in short" means ______.A． in the long runB． in detailC． in factD． in a word

[单选题]the last sentence of the passage implies that if another drought came, ______.A． the situation would be much worseB． people would have to desert their homesC． the city would be fully prepared in advanceD． the city would have to redevelop the neighbor

[单选题]In the last sentence, "with flying colors" means______.A． happilyB． colorfullyC． successfullyD． quickly

[单选题]The last sentence“And everyone knows what happens next”implies that in such cases ．A．farm animals will be in danger and have to be shipped awayB．woIves will kill people and people will in turn kill themC．wolves wilI find enough food sources on famlsD

[单选题]A sentence is considered when it conforms to the grammatical knowledge in t

[单选题]A sentence is considered when it conforms to the grammatical knowledge in t

[单选题]The phrase“last but one”means______．A．第一名B．倒数第二名C．最后一名D．第二名

[单选题]The word "accepted" in the last sentence of the first paragraph roughly means ______.A．) believedB．) assumedC．) receivedD．) reconciled