【单选题】下列语句中,属于并行语句的是 ( ) A .进程语句 B . IF 语句 C . CASE 语句 D . FOR 语句
【判断题】大跨越档距用耐张线夹代替直线塔上的悬垂线夹,很容易解决微风振动产生的动态应力、振动疲劳断股和线夹的握力等问题。
【单选题】( )Nobody knows his telephone number, ________ ?
【简答题】Passage Two The inventor of spectacles probably lived in the town of Pisa, Italy, around 1286, and was almost certainly a craftsman working in glass. But nobody knows his name. We only know this much ...
【单选题】当叶片发生疲劳断裂时,断面的疲劳纹路与振动方向在一般情况下基本是()。
【简答题】汽轮机动叶片因振动造成疲劳断裂后,怎样判断振动方向?
【判断题】七届二中全会的召开,标志着中国共产党领导的多党合作和政治协商制度的确立。
【单选题】电线绝大多数的振动疲劳断股是发生在()处。