导线点的横向误差主要是由()的观测误差引起的。
参考答案:水平角
To ____ your dream of becoming a scientist, you must work hard from now on.
A.turn
B.recognize
C.live
D.change
货车运用限度规定,敞车车体外胀重车不大于()。
A.75mm
B.80mm
C.135mm
D.150mm