班级组织的健康发展在很大程度上取决于班主任对班级成员的认知和理解程度。()
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It can be inferred from the first paragraph that Zero Day
A. is part of Microsoft"s Windows operating system.
B. can help a computer to avoid online criminals.
C. is offered by legitimate Web sites.
D. can control a computer through its system weakness.
You and your family are planning for a trip to Hong Kong during the May holiday. Write a letter to a travel agency to explain your travel plans, ask for relevant information, and express your gratitude for a reply. You should write about 100 words on ANSWER SHEET 2. Do not sign your own name at the end of the letter. Use "Li Ming" instead. Do not write the address.
Suppose you are an secretary of the English Department of X University. Write a notice to