The ecological balance of the sea is lost when______.
A. people consume more fish than they used to
B. the ecological balance of the river is lost
C. large numbers of algae, fish and birds are killed
D. the production of marine petroleum is increased
查看答案
根据《合同法》的规定，租赁合同的租赁期限在6个月以上的，合同必须采用书面形式，当事人未采用书面形式的，视为不定期租赁。 ()
A. 正确
B. 错误
Which of the following is true according to the text？
A. Chicago's sweeping statute was struck down for its involving too many arrests.
B. Chicago officials still maintained their get-tough crime policies.
C. It was not safe for children to play on the street.
D. California used a scalpel while other states used an invisible mallet to cope with the gangs.
Yang Liwei comes from Beijing.
A. Right.
B. Wrong.
C. Doesn't say.
What is Sherlock Metal Detector used for？
A. To mend things.
B. To find things.
C. To give air.
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