举一反三
- The hand steering is a method by which the motion of the rudder is controlled with （）.
- Which of the following is NOT an example of accelerated motion? A: Vertical component of projectile motion B: Circular motion at constant speed C: A swinging pendulum D: Earth’s motion about sun E: Horizontal component of projectile motion
- Angular motion about the vertical axis of a vessel is called_____
- Old English has a vocabulary of about _____ words. [ ]
- Which of the following statements are improper about hand shake?
内容
- 0
Which of the following statement is not true about vocabulary? A: a vocabulary item can be more than one word B: Vocabulary can not be taught. It must be learned by the individuals. C: Words is best learned in context D: An English-English dictionary is an important aid for students.
- 1
It was about 600 years ago （） the first clockwith a face and an hour hand was made.
- 2
Young children often feel a lot of about their first day at school. A: tension B: anxiety C: motion D: passion
- 3
The forms of fluid motion in impeller include A: Circular motion B: Relative motion C: Vertical motion D: Absolute motion
- 4
_____ means refer to the vocabulary and expressions used by the speaker in a flexible way to explain or describe or give further information about the main idea.