单项选择题
A.found out
B.eliminated
C.avoided
D.lowered
单项选择题 If () are taken at regular intervals, any unequal distribution of load will be easily found out.
单项选择题 If the action of the engine indicates that some of the cylinders are not firing, the ones affected may be determined by watching ().
单项选择题 The injection may be delayed, ()the pumps are in good order, if the fuel lines to the injection valves have not been cleared of air.