带ABS的制动系，可采用哪种规格的制动液（ ）。 A: DOT　1 B: DOT　2 C: DOT　3 D: DOT 4

Among the five national radio channels of BBC, ___________is sometimes referred to as “Radio Bloke”. A: Radio 1 B: Radio 2 C: Radio 3 D: Radio 5 Live

关于相对导数与绝对导数的关系，正确的是_____。 A: $\dot r = \tilde{\dot r}$ B: $\left| {{\bf{\dot r}}} \right| = \left| {{\bf{\tilde{ \dot r}}}} \right|$ C: ${\bf{\dot r}} = {\bf{\tilde{ \dot r}}}$ D: 以上都不正确

Dot

The word “radar” is an acronym for _______ A: Radio Detecting and Ranging B: Radio Defect and Reach C: Radio Defending and Range D: Radio Detect and Range

<input type="radio" name="radio" id="radio" value="male" />这段代码表示

5 turn off a radio ____ hold a radio ____

Unit Check 11 短听力选择 -5听一遍，选择正确答案 A: Receiver failure B: Radio failure C: Transmitter failure D: Radar failure

GPRS的英文全称为：（）。 A: AGlobal Packet Radio Service B: BGeneral Packet Radio Service C: CGeneral Packet Radio System D: DGlobal Packet Radio System

（）, she began to search some on TV. A: There were so no interesting radio programs B: There was no interesting radio programs C: Without being interesting radio programs D: There being no interesting radio programs