（）is the distance east or west measured in degrees，minutes and seconds of arc on the equator between the prime meridian and the meridian passing through the place.

The sum of the odd integers between 80 and 90 is what fraction of the sum of the integers between 80 and 90 (inclusive)?

Because the top of the connecting rod swings about the pin and changes direction each time the piston reaches mid-stroke, the relative speed between bearing and pin at mid-stroke is zero, （）to a maximum as the piston approaches top or bottom dead center and then （） back to zero again as the piston approaches mid-stroke and the connecting rod changes direction.

Cold clearances between the skirt of an aluminum piston and the cylinder liner is about （）

（）doesn’t need to change package of goods or to stop in any place between the origin and destination

（）doesn’t need to change package of goods or to stop in any place between the origin and the destination point.

Is y between 1 and 2, exclusive?　　(1) y2 is less than y　　(2) y2+y is between 1 and 2, exclusive

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

Sometimes lights are（）by fog，haze，dust，smoke，or precipitation which may be present at the light，or between the light and the observer，and which is possibly unknown by the observer.

In charter-party，a clause states: the vessel to be employed between good and safe ports or places where she can（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在澳大利亚的早期移民中，来自英语国家的高于来自非英语国家的。