【单选题】某船顶流顺风航行,船速15kn,流速2kn,2h后相对计程仪读数差为32'.0,计程仪改正率ΔL=+10%,则该船实际航程为()。
【简答题】函数 f ( x , y )= x 2+4 y 2-2 x +8 y 的极小值为 。
【简答题】Words are in different sense relations with each other. What sense relation is illustrated in each of the pairs of words below? Add one more example to each pair.(北航2008研) (a)casual - informal (b)inte...
【单选题】30岁,停经17周,1个月来间断少量阴道出血,腹部无明显压痛,反跳痛,子宫颈口未开,子宫增大如孕8周,最可能的诊断为( )。
【判断题】Sense is the meaning that lies in the relation or contrasts among linguistic forms themselves.()
【判断题】Hyponymy (p.226) refers to the sense relation between a more general word and a more specific word.()
【单选题】患者停经17周,1个月来间断少量阴道出血,检查腹部无明显压痛、反跳痛,子宫颈口未开,子宫增大如孕8周,最可能的诊断为
【单选题】There are generally three kinds of sense relations recognized, sameness relation, oppositeness relation and inclusiveness relation. They are represented by______respectively.
A.
synonymy, antonymy, and hyponymy
B.
synonymy, hyponymy, and antonymy
C.
antonymy, synonymy, and hyponymy
【简答题】求函数f(x,y)=x 2 +2y 2 的极小值,等式约束条件为 g(x,y)=x+2y+4=0并验证充分条件。
【单选题】孕妇,停经17周,1个月来间断少量阴道出血,检查腹部无明显压痛、反跳痛,子宫颈口未开,子宫增大如孕8周,最可能的诊断为