A、 The output of AND gate is one when either of its inputs is logic one.
B、 There is absolute no relationship between the output and input of the AND gate.
C、 The output of AND gate is one only when all the inputs are logic one.
答案:C
A、 The output of AND gate is one when either of its inputs is logic one.
B、 There is absolute no relationship between the output and input of the AND gate.
C、 The output of AND gate is one only when all the inputs are logic one.
答案:C
A. 在进近、着陆和滑行过程中提供引导的部分系统。包括航向道、下滑道、ILS、马赫信标、电子指引器、地面引导系统等。
B. 在起飞、着陆和滑行过程中提供引导的部分系统。包括航向道、下滑道、ILS、马赫信标、目视指引器、地面引导系统等。
C. 在进近、着陆和滑行过程中提供引导的部分系统。包括航向道、下滑道、ILS、马赫信标、目视指引器、地面引导系统等。
A. 机身上有三个顶升点
B. 机体上有三个基准点
C. 机腹上有三个插孔
A. COMMENCE
B. START
C. ACTIVATE
A. 如果结果不同请执行此测试
B. 如果数值不同,请执行此测试
C. 如果数值相同,请执行此测试
A. 确保钢索张力正常。
B. 确保锁定线束绷紧。
C. 确保保险丝有张力。
A. Each door has flexible seals at its structure interface which protect the metal interfaces from damage by the airflow.
B. Each door has flexible seals at its structure interface which protect the metal interfaces from no damage by the airflow.
C. Each door has formalist seals at its structure interface which protect the metal interfaces from damage by the airflow.
A. 用一条水平的然线沿着页面外侧(或两栏页面上与边槽相对的列侧)来标识修订、添加和删除,该黑线只与印刷品的修改部分相对应。
B. 用一条竖直的黑线沿着页面外侧(或两栏页面上与边槽相对的列侧)来标识修订、添加和删除,该黑线只与印刷品的修改部分相对应。
C. 用一条横向的白线沿着页面外侧(或两栏页面上与边槽相对的列侧)来标识修订、添加和删除,该黑线只与印刷品的修改部分相对应。
A. REACH
B. STRETCH
C. EXTEND
A. 确保轴承安装正确。
B. 确保部件安装正确。
C. 确保齿轮是正确的安装。
A. Let the substance become hard.
B. Let the adhesive become hard.
C. Let the admixture become hard.