对于复杂的工程或新建筑群，可用较精确的坐标网来确定各建筑的方位和道路的位置。常用的坐标网有测量坐标和建筑坐标。( )
参考答案：对
As is known to all, ________ opening ceremony of the 16th Asian Games held on November 12th in Guangzhou was ________ great success.
A．不填；a
B．the; a
C．the; 不填
D．a; 不填
妊娠晚期，维持妊娠的激素是妊娠黄体产生的雌激素和孕激素。
