魔术师没有运用“魔术的科学原理”的一项是：（2分）

【名词&注释】

神经元(neurons)、魔术师(juggler)

[单选题]魔术师没有运用“魔术的科学原理”的一项是：（2分）

A. 让观众注意发出声响的物件或看某个地方。
B. 让观众跟着数数或计时。
C. 表演前问候观众来营造氛围。
D. 抖动或旋转相应的道具来营造氛围。

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学习资料：

[单选题]Bobpromisestojoininthefootballmatch______hehastohelphisparentsonthefarm.

A. if
B. as
C. unless
D. when

[单选题]25． Which of the following is WRONG?

A. One animal finds something to eat， and it may be eaten by others
B. At the depth of 3，000 feet under the sea， many animals can find their way by hearing and feeling．
C. The deeper the sea is， the darker and colder it is．
D. At the depth of 3，000 feet under the sea， all animals can find their way by see-ing．

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