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如图,在一长直导线L中载有恒定电流I1,ABCD为一刚性矩形线圈,与L共面,且AB 边与L平行.矩形线圈中载有恒定电流I2,则线圈AB边和CD边受到的安培力的方向分别为()

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Which of the following is NOT a speculation about Bryant’s motive to change his number,according to this passage?

A. He wants to leave his past behind and have a fresh start.
B. He wants to compare himself to Jordan.
C. He wants to earn more money.
D. He wants to show that he is a man of great importance.

Which type of robot is NOI mentioned in the last paragraph?

A. Maggot-like robots.
B. Snake-like robots.
C. Ball-shaped robots.
D. Chair-shaped robots.

A.In spite of B.In terms of C.Because of D.Regardless of

A. In spite of
B. In terms of
C. Because of
D. Regardless of

Maybe. Last week, the UK's Cabinet Secretary Andrew Turnbull openly welcomed a tieless era. Fie hinted that civil servants would soon be free of the costliest 12 inches of fabric that most men ever buy in their lives.
In fact, Blair showed this attitude when he had his first guests to a cocktail party. Many of them were celebrities (知名人士) without ties, which would have been unimaginable even in the recent past.
For some more conservative British, the tie is a must for proper appearance. Earlier, Labor leader Jim Callaghan said he would have died rather than have his children seen in public without a tie. For people like Callaghan, the tie was a sign of being complete, of showing respect. Men were supposed to wear a tie when going to church, to work in the office, to a party - almost every social occasion.
But today, people have begun to accept a casual style. even for formal occasions.
The origin of the tie is tricky. It started as something called simply a "band". The term could mean anything around a man's neck. It appeared in finer ways in the 1630s. Frenchmen showed a love of this particular fashion statement. Their neckwear (颈饰) impressed Charles II, the king of England who was exiled (流放) to France at that time. When he returned to England in 1660, he brought this new fashion item along with him.
It wasn't, however, until the late 18th century that fancy young men introduced a more colorful, flowing piece of cloth that eventually became known as the tie. Then, clubs, military institutions and schools began to use colored arid patterned ties to indicate the wearer's membership in the late 19th century. After that, the tie became a necessary item of clothing for British gentlemen.
But now, even gentlemen are getting tired of ties. Anyway, the day feels a bit easier when you wake up without having to decide which tie suits you and your mood.
第41题:The tie symbolizes all of tile following except

A. respect.
B. elegance.
C. democracy.
D. politeness.

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