【判断题】近代卫星大地测量中的卫星激光测距定位应用了测距交会定位的原理和方法。虽然用于激光测距的卫星(表面上安装有激光反射器)是在不停地运动中,但总可以利用固定于地面上三个已知点上的卫星激光测距仪同时测定某一时刻至卫星的空间距离d1、d2、d3,应用测距交会的原理便可确定该时刻卫星的空间位置。
【单选题】听力原文:It is impossible for me to read all the books on the reading list within such a short time, because there are more than fifty. (28)
A.
There are too many books for me to read within such a short time.
B.
Although there are too many books, I can finishing reading in time.
C.
The reading list is long enough for me to finish reading.
D.
I prefer a longer reading list.
【单选题】The instructor asked us to list anything in our past that we felt __________ of, regretted and read our lists aloud. [ ]
【单选题】患者,男,岁。因进行性排尿困难,夜尿增多就诊,医生询问病史后给患者做相应的检查。 关于直肠指检的说法不正确的是
【单选题】地面点的空间位置是用[填空(1)]确定的。
【单选题】Please read your list _______food to us. [ ]
【判断题】在编制程序时,首先应该对程序的结构充分考虑,不要急于开始编码,而要像写软件文档那样,很好地琢磨程序具有什么样的功能,这些功能如何安排,等等。
【判断题】八路军在抗日战争中牺牲的最高指挥员是八路军副参谋长兼前总参谋长左权。