采油树安装一定要按操作顺序进行，大四通上、下法兰（）。
A.规格要统一
B.外径尺寸要统一
C.方向要一致
D.间隙要一致
参考答案：D
补全对话。
Clark: What events do you ____1____ at your school?
David: We have an English Speech Contest each year.
Clark: ____2____ is it?
David: It's March 5th.
Clark: Do you have ___3_____ Art Festival?
David: Yes. It's March 17th. ___4___ we have a basketball game on March 10th.
Clark: When is your School Trip?
David: It's April 6th.
Clark: Is Linda's birthday ___5___in April?
David: Yes. It's April 18th.
一汽-大众旗下第一款基于发动机扭矩命名的车型是哪款车（）。
A.新捷达
B.新速腾
C.高尔夫A7
D.迈腾B7L
