问题
单项选择题
若水平角需两测回,则第一个测回时,水平度盘起始读数配置在稍大于0°处,第二个测回开始时配置读数在稍大于( )处。
A.60°
B.90°
C.180°
D.360°
答案
参考答案:B
若水平角需两测回,则第一个测回时,水平度盘起始读数配置在稍大于0°处,第二个测回开始时配置读数在稍大于( )处。
A.60°
B.90°
C.180°
D.360°
参考答案:B
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3. 词数:120左右。 Nowadays, QQ Farm and Happy Farm are very popular among people from all walks of life. A large number of middle school students are also involved in the game. |