第4题: [单项选择](So great) (was) the influence of Thomas Paine (on) his own time that John Adams suggested that the era (was called) "The Age of Paine". A. So great B. was C. on D. was calhd 参考答案:D 答案解析:应为(should)be called。suggested决定了该句的宾语从句为虚拟语气。
第21题: [单项选择]男性,54岁,上腹胀痛伴呕吐4天,呕吐物为隔日所进食物,量约1200ml/次,查体:血压105/60mmHg,皮肤干燥,眼球下陷,上腹部隆起,可见胃型和胃蠕动波;Chvostek征阳性:血清钠128mmol/L。造成上述水、电解质紊乱最可能的原因是()。 A. 急性胃肠炎 B. 上消化道大出血 C. 机械性幽门梗阻 D. 完全性低位小肠梗阻 E. 闭襻性结肠梗阻 参考答案:C