【单选题】选择备选区的答案,确定各数字对应的平面的空间形状。【图片】
【判断题】The higher the main diagonal probabilities, the better the investor can predict the state of nature
【多选题】白口铸铁(2.11% -- 6.69%C) 指液态结晶时都有共晶反应且室温下的平衡组织中皆含有变态莱氏体的一类铁碳合金,其断口白亮而得名,俗称生铁分类( )。
【判断题】含碳6.69%的铁碳合金,其室温平衡组织为铁素体加渗碳体。
【判断题】含碳6.69%的铁碳合金,其室温平衡组织为铁素体加渗碳体
【单选题】What shall we do when the new customer makes inquiries for our products?
A.
You should say there is no stock of the items available for the time being.
B.
You should say you are glad to have the inquiries and make offers to the customer.
C.
You should not answer the inquiries fully and promptly.
D.
You should not express the hope of lasting friendly business relations with the customer.
【判断题】A diagonal line can go two directions, upwards or downwards.