×
单选题
2755. Another type of speed-regulating unit is the variable restrictor It contains an adjustable needle valve, which has threads around the top and a point on the lower end
A
另一种类型的速度调节组件是可限流器。它包含一个可调节的螺旋活门,依靠螺纹可以从顶部一直旋转到底部。
B
另一种类型的速度调节组件是可变限流器。它包含一个可调节的蝶形活门,其顶部有指向下部的螺栓。
C
另一种类型的速度调节组件是可变限流器。它包含一个可调节的针状活门,其顶部有螺纹,下端有一个尖。
答案解析
正确答案：C
相关题目
单选题
608. 使压力接头适应皮托管端头。
单选题
607. A normal blank page shall be identified on the preceding page only
单选题
606. 不要在工作区吸烟
单选题
605. 加油软管不能碰到油箱的边缘。
单选题
604. The first step should always be Job Set-up and last should be Close-Up or Clear-Up
单选题
603. One generator can supply power for all the systems
单选题
602. Remove both side of interior upholstery board and take dwn heat insulation cottom
单选题
601. The type certificate will not be issued to the applicant unless the finding are completely settled
单选题
600. Use a jumper to connect the pins 1 and 2 of the switch connector
单选题
599. Some tanks are called trim tanks because as well as storing fuel,they are also used to trim the aircraft
