So conservationists hope they can ______ the area's outstanding natural beauty and satisfy
A. reserve
B. retain
C. preserve
D. sustain
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Although the pay is not good, the retired workers usually find social work ______ in other
A. grateful
B. respectful
C. payable
D. rewarding
《建设工程勘察设计管理条例》规定，建设工程勘察、设计单位所承接的任务()。
A. 可以进行转包
B. 不得进行再分包
C. 可以进行再分包
D. 分承方可以再次分委托
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