There are two kinds of stroke, and they are ischemic stroke and hemorrhagic stroke.

The third stroke is the power stroke．

The first stroke is the intake stroke．

The fourth stroke is the exhaust stroke．

The second stroke is the compression stroke．

词汇题：There are eight basic strokes: dot, horizontal stroke, turning stroke, vertical stroke, hook stroke, right-upward stroke, left-downward stroke and right-downward stroke. 英译汉。注意标点。 汉字有八个基本笔画/八大笔画：____________________

When the left falling stroke and right falling stroke ______ each other, first write the left falling then the right falling stroke. A: cross or join B: enclose C: contain D: consist of

Four strokes—intake stroke, compression stroke, power stroke and exhaust stroke—complete one working cycle．

Paragraph 2（） A: Effects of a stroke B: Annual cost of stroke in the US C: Definition and description of a stroke D: Breakthroughs in treatment E: Risk factors of stroke F: Warning signs of a stroke

The old man keeps his good habit of getting up and going to bed ________. A: on strike B: with a stroke C: on the stroke D: at a stroke