The value of drain current is always （ ） the value of the short circuit drain current IDSS for a given JFET.

The amount of lubricating oil in the drain tank should be checked by （）.

The trend of brain drain does the developing countries ______ degrees of harm.

The lubricating oil is pumped from the drain tank， very often with （） in the suction line.

Lubricating oil for an engine is stored at the bottom of the （）， known as the sump or in a drain tank located beneath the engine.

The oil is drawn from a drain tank through （）， one of a pair of pumps， into one of fine filters.

A good teacher should have the ability to ___ the desire to learn in the students. A: release B: wither C: instill D: drain

The leak was so slow we barely noticed it. A: drain B: running water C: flow D: flood

Scientists are pushing known technologies to their limits in an attempt to ________more energy from the earth. A: extract B: discharge C: inject D: drain

The starting air system usually has （） to prevent starting if anything is not in order. A: drain cocks B: vent valves C: counteracts D: interlock