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污泥中含有大量有机物、营养物、细菌、寄生虫。
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保护海洋，人类必须遵守以下原则有哪些？
1. Read the text and judge whether the following statements are true or false. Write T if the statement is true and F if it is false.1) West End of London is located not very far from Chinatown. _____
Ticket sales for West End shows have been very poor in recent years due to high prices. _____
Some American movie stars also perform in London’s West End. _____
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