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提问人:网友sharpperson1 发布时间:2022-01-07
[单选题]

Th e CDMA technology for mobile communications is first used in a. GSM systems. b. IS-95 systems. c. AMPS systems. d. TD-SCDMA systems.

A.错

B.对,

C.错

D.错

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  • · 有3位网友选择 A,占比37.5%
  • · 有3位网友选择 C,占比37.5%
  • · 有2位网友选择 B,占比25%
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匿名网友[15.***.***.118]选择了 A
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第2题
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第3题
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第4题
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第5题
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第6题
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第7题
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第8题
SECTION BPASSAGESDirections: In this section, you will hear several passages. Listen to th

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We can infer from the speaker that

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第9题
SECTION BPASSAGESDirections: In this section, you will hear several passages. Listen to th

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第10题
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