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【简答题】
The third problem with this analysis is that there is a class of words that do not seem to have any semantic features, such as the, of, and, ah. They are generally referred to as ____ words, as opposed to content words.
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反馈参考答案：
举一反三
【单选题】下列选项中,属于柱面透镜的是( )
A.
-3.00DS
B.
-5.00DC×90
C.
+2.00DS/-2.00DC×180
D.
+1.00DC×90/-3.00DC×180
【简答题】Listen and tick. 听录音，在听到的内容后划“√”。 1. TL 2. abc 3. three 4. twenty ( ) ( ) ( ) ( ) JB bac thir ninety ( ) ( ) ( ) ( ) QU cbad thirty sixty-six ( ) ( ) ( ...
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