They are all mounted on the back plate．
举一反三
- A-frames are mounted on the bed plate and support （） and cylinder block. A: the main bearing B: the cylinder cover C: the entablature D: the sum
- 在调节钢索前移开板子。 A: Remove the plate before you adjust the cable. B: The removal of the plate is required to precede the adjustment of the cable. C: Remove the plate prematurely, then adjust the cable. D: Adjustment of the cable requires previous removal of the plate.
- When you finish your meal and leave the table A: put your napkin on your chair. B: loosely fold the napkin and lay it to the left of your plate. C: put the napkin on your plate. D: put the napkin under your plate
- The food scraps in Chinese food should be placed ( ) the plate. Do not spit them directly on the floor or table. If the plate is full, ask the waiter to replace it. A: under B: to the right of C: on D: to the left of
- All English back vowels are rounded.