第5题: [单项选择]He raised his glass and ______ her with his last mouthful. A. roasted B. boasted C. coasted D. toasted 参考答案:D 答案解析:toast意为“烤,烘(面包等),提议为…干杯”,符合题意;roast意为“烤,烘(肉等)”;boast意为“自吹自擂,自夸”,后常跟介词of (about);coast作动词时,意为“沿海岸航行,(
第14题: [单项选择]某类住房的需求函数是Qd=600000-500P,住房供给函数是Qs=-500000+600P,则均衡价格是( )。 A. 100 B. 1000 C. 1500 D. 2000 参考答案:B 答案解析:[解析] 由题意有,600000-500P=500000+600P,解得,均衡价格P=1000。