It took them a few years to_____ the sunken wrecks out of the water finally.

[问答题]Few of them believe you.

[单选题]E．very few years, the coal workers ______ their lungs X-rayed to ensure their health.A． are havingB． haveC． have hadD． had had

[单选题]It took them along time to [mend] the old bridge.A.buildB.destroyC.designD.

[单选题]We are glad that we finally managed to get into contact ______ them.A.atB.o

Arthur von Wiesenberger, who carries the title Water Master, is one of the few w

It took years for Einsteins theory to gain（          ）.A. acceptB. acceptanceC.

[试题]H．ow to pump out bilge water in the engine room?

[单选题]D．uring the last few years ,it has been realized that maintenance of programs is more expensive than development, so reading of programs by humans is as important as(73)them.A．editingB．writedC．writtenD．writing

[单选题]D．uring the last few years, it has been realized that maintenance of programs is more expensive than development, so reading of programs by humans is as important as(67)them.A．editingB．writedC．writtenD．writing

[单选题]During the last few years，it has been realized that maintenance of programs is more expensive than development,so reading of programs by humans is as important as (73) them.(73) A．editingB．writedC．writtenD．writing