According to the fuel en engine burns, there are gasoline engines and _________ engines.

181. Advise you ______ engines.

According to the fuel an engine burns, there are ________. A: reciprocating and rotary engines B: gasoline and diesel engines C: 4-cylinder and 6-cylinder engines D: inline and boxer engines

As a student, what is the best way to save money of booking flights? A: Compare prices online using accurate and fair search engines. B: Compare prices online using accurate and fair search engines. C: Compare prices online using accurate and fair search engines. D: Compare prices online at the different time of a day.

What are there types of the engine? A: electric motors B: steam engines C: internal combustion engines

During the 1950’s, __________ was used for the first time to drive steam engines.

In a four-stroke engines the camshaft rotates at _____.

词汇与结构 Before takeoff, the engines, particularly piston engines, are routinely run up at high power to check for ________ problems.

But steamships didn't lose their sails until the 1880s, because early marine engines had a nasty habit of breaking down. Until ships became large enough (and engines small enough) to mount two engines side by side, they needed to keep sails. (CET4-2014.6)

SHOW ENGINES语句不可以用（ ）结束