●In C language，the usual expression statements are (73) or function calls.

●In C language，the usual expression statements are (73) or function calls.

In the four-stroke engine, it takes （） to make one power stroke.

With four-stroke engines, it takes four revolutions of the crank shaft to make （） power stroke(s).

The purpose of the skirt or trunk in four-stroke cycle engines is to act in a similar manner to a （）.

The ways in which words follow one another and are related to one another is called the syntagmatic dimension of language, the dimension of “chaining” or “sequencing”.（）

The ways in which words follow one another and are related to one another is called the syntagmatic dimension of language, the dimension of “chaining” or “sequencing”.（）

The movement of water away from the shore or downstream is called a(n)（）.

Strainers, sometimes called （）, are devices designed to prevent the passage of unwanted solids into or further along a system.

In four strokes engine, the cycle of events is completed in four strokes of （）.

Marine four-stroke diesel engines are mainly （）.

The four-stroke cycle begins with the piston （）.