The technological team aims to __ a solution to the problem in the new system.

This is a highly ___ new heating system.A. efficiencyB. efficientC. efficiently

[单选题]The best solution to the problem of the spread of bird flu is ______.A． to kill all the birds in an area where bird flu has been discoveredB． to kill all the chickensC． to kill all the birdsD． to kill all the chickens when bird flu has been discovere

[单选题]Acid solution（） in the system can be tested from time to time by putting some on to a piece of lime.A . strengthB . denseC . percentageD . velocity

[单选题]The government [proposed]changes to the voting system.A.statedB.declaredC.s

[单选题]The government [proposed]changes to the voting system.A.statedB.declaredC.s

[单选题]The government [proposed]changes to the voting system.A.statedB.declaredC.s

is a condition that is being monitored by the control system.A. Proportional con

[单选题]They are trying to[identify] what is wrong with the present system.A.proveB

Needless to say, the housing problem there cried out for immediate solution.A. t

[填空题] 枚举是从System.（）类继承而来的类型。