While installing a new PCI card the administrator touched the motherboard. While powering on the server， a series of beeps were emitted and the server did not POST. Which of the following could be done to prevent this problem？ （）
第1题：
与以下程序段等价的是( ) while (a) { if (b) continue； C； }
A．while(a)
B．while(c) {if(!b) c;) {if(!b)break: c:)
C．while?
D．while(a) {if(b) c:) {if(b) break: c；}
第2题：
while和do-while循环的主要区别是
A．do-while的循环体至少无条件执行一次
B．while的循环控制条件比do-while的循环控制条件更严格
C．do-while允许从外部转到循环体内
D．do-while的循环体不能是复合语句
第3题：
A.while(x<=7)
B.while(x=7)
C.while(x<7)
D.while(x!=7)
第4题：
The idea for the new project came to Jack ______ to his study recently.
A. while devoting
B. while devoting himself
C. while he was devoted
D. while devoted
第5题：
下列写法中等价的是( )。
A．若x=1,while(x!=x)与while(x)
B．若x=0,while(x!=x)与while(x)
C．若x=1,while(x!=0)与while(!x)
D．若x=0,while(x==0)与while(x)
第6题：
A.do-while循环体内可以使用break语句，while循环体内不能使用break语句
B.do-while的循环体至少无条件执行一次，while的循环体不是
C.do-while循环体可以使用continue语句，while循环体内不能使用continue语句
D.while的循环体至少无条件执行一次，do-while的循环体不是
第7题：
While installing a new PCI card the administrator touched the motherboard. While powering on the server, a series of beeps were emitted and the server did not POST.Which of the following could be done to prevent this problem?（）
A. Use ESD equipment.
B. Verify correct voltages are being supplied.
C. Use a system board tester to check for compatibility issues.
D. Install compatible PCI cards
第8题：
Accidental flooding of the engine room bilges by the bilge main is prevented by( ).
A.stop-check valves installed in the bilge suction manifolds
B.using a positive displacement reciprocating bilge pump
C.installing educators in all bilge rose boxes
D.installing a swing check before each bilge valve
第9题：
A. when installing SSD drives
B. when adding a new workload
C. when installing SATA drives
D. when adding more Linux hosts
第10题：
while(a)等价于（）