A．s mentioned in Paragraph 4, a key question unanswered about homework is whether______.

[A] it should be eliminated

[B]it counts much in schooling

[C]it places extra burdens on teachers

[D]it is important for grades

[单选题]The key word in Paragraph 4 is ______.A． barriersB． ignoranceC． disabilityD． prejudice

Why are Arnold Schwarzenegger and Garth Brooks mentioned in Paragraph 5?A. To pr

You may choose a paragraph more than once, Each paragruph is manked with letter.

2.1 Focusing on the main ideas Complete the following paragraph with key informa

[单选题]Paragraph 4 ______

[单选题]A．dam Smith mentioned the number 4 800 in order to ______.A．show the advantages of the division of laborB．emphasize how powerful the individual worker wasC．show the advantages of the old craft systemD．emphasize the importance of increased production

[单选题]A．s it is used in paragraph 4 of the passage, the word "porous" means______.A．having or full of holesB．lacking physical strength, energy, or vigorC．easily broken or hurtD．powerful against harm.

Skim the text and choose the main idea in the box for each paragraph.Paragraph 4

[单选题]The word “combat”(Paragraph 4) is closet in meaning to “_________ ”A． come backB． combineC． fight againstD． avoid

[单选题]It can be learned from paragraph 4 thatA． Straitford's prediction about Ukraine has proved true.B． Straitford guarantees the truthfulness of its information.C． Straitford's business is characterized by unpredictability.D． Straitford is able to prov