According to the passage, as the corona rays reach the planets, they become______.
A. darker
B. weaker
C. cooler
D. clearer
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The German scientist made experiments in order to______.
A. find that animals were as clever as human beings
B. show that his apes could use sticks as tools to get bananas
C. prove that animals had no words for keeping memory of something
D. find out that some animals could use tools to get food but have no words to keep things in mind
One unusual aspect of voting in Australia is that it______.
A. requires voters to pay a fee
B. is allowed to those under the age of 21
C. is compulsory
D. is always preceded by registration
企业提交银行的各种结算凭证填错了金额，应采用划线更正法予以纠正，不得随意涂改、刮擦或挖补。 ()
A. 正确
B. 错误
The passage implies that______.
A. Britain's House of Commons has 701 members
B. the Australian system works well in Australia
C. the U. S. system of government developed slowly
D. elections are more frequent in Australia than in England
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