在同一竖直面内,目标方向线与水平线的夹角,称为____。
A. 水平角
B. 天顶距
C. 高差角
D. 竖直角
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水平角的大小与地面点____无关。
A. 高程
B. 高差
C. 距离
D. 角度
由一点到两个目标的方向线垂直投影在水平面上所成的角,称为____。
A. 竖直角
B. 天顶角
C. 水平角
D. 天顶距
仪器下沉误差还可通过“后、前、前、后”的观测程序予以消减。
A. 对
B. 错
Now listen to the passage again. After listening, fill in the blanks with theinformation you have heard. 1) Students are doing __________ following a budget and saving any money they ____________ from work, school loans and scholarships.2) Many students don’t know how much money is in their ____________ and often don’t have enough money in them to ____________.3) Because students use less cash and ________________ these days, it’s harder for students to___________ how much they’re spending.