下列关于加弹机的DTY丝饼初始动程,控制范围合理的是()。
A、250mm±2mm
B、240mln±2mm
C、260mm4-2mm
D、220mm4-2mm
参考答案:A
A large crowd _______ wildly as the pilot _________ her plane safely in California.
A.had cheered; was landing
B.had cheered; landed
C.was cheering; had landed
D.was cheering; landed
豆蚜的体色()。
A.灰紫色至黑褐色
B.红色
C.绿色
D.黄色