【单选题】H450×450×12×20是表达:()。
A.
高度H×腹板厚度t 1 ×翼缘厚度t 2 ×宽度B
B.
腹板厚度t 1 ×宽度B×高度H×翼缘厚度t 2
C.
宽度B×高度H×腹板厚度t 1 ×翼缘厚度t 2
D.
高度H×宽度B×腹板厚度t 1 ×翼缘厚度t 2
【单选题】She is very about her appearance. Half of her salary goes to clothes.
【单选题】A ______ heart beats around seventy-six times a minute.
【简答题】基尔霍夫电流定律 (KCL) 可表述为:电路任一节点,在任一时刻流入该节点的 _________ 为零。基尔霍夫电压定律 (KVL) 可表述为:电路中任一回路,在任一时刻,沿回路的 _________ 为零。
【简答题】She wanted to be ...(dependence)and left her parents at the age of 18.
【单选题】Her sister has become a lawyer,________ she wanted to be.