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【单选题】
为了保护数据库的安全，主要在( )几个层次上采取安全性措施。 Ⅰ．数据库系统层 Ⅱ．物理层 Ⅲ．操作系统层 Ⅳ．人员层 Ⅴ．网络层A.
Ⅰ和Ⅳ
B.
Ⅰ、Ⅳ和Ⅴ
C.
Ⅲ、Ⅳ和Ⅴ
D.
都是
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举一反三
【简答题】填入适当的词，补全对话。 1. A: Excuse me! ____________ she a doctor? B: No,she isn't. ____________ a teacher. A: What's ____________ name? B: Her name is Marry. A: ____________ ____________ are her eyes? B: They ...
【单选题】The room was the home of some short kind-hearted men.
A.
Right
B.
Wrong
C.
Doesn't say
【简答题】： Mr. and Mrs. Brown lived in a short and wet room last year. Now their daughter was born, the room was too narrow for them to live in. Last Friday, after the factory paid out wages（工资）, Mr. Brown had...
【简答题】按要求改写句子，每空一词。 1. 'Where will you wait for me?' she asked me. (改为间接引语) She asked me _________ I _________ wait for her. 2. Is he from England? Could you tell me? (合并为含有宾语从句的复合句) Could you tell me _____...
【单选题】w or k A. m or ning B. short C. w or se D. f or ty
A.
m or ning
B.
short
C.
w or se
D.
f or ty
【简答题】She pretended ______ me as she passed me. (not see)
【简答题】用embarrass的适当形式填空 1. He asked me an question, which made me . 2. She is in financial .
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