第14题: [多项选择]流动式起重机包括()。 A. 塔吊 B. 汽车起重机 C. 轮胎起重机 D. 门式起重机 参考答案:B,C
第15题: [单项选择]关于贵细药材养护与保管叙述错误的是() A. 贵细药来之不易,经济价值高,需特殊保管 B. 贵细药大多是植物、动物类,少数是菌藻类 C. 贵细药包括人参、丹参 D. 贵细药应专库存放 E. 贵细药需要专人管理 参考答案:C
第16题: [单项选择]If he had followed the doctor's instruction and ______ in bed to rest, he ______ recovered already. A. had laid; would B. had been lain; would C. had lain; would have D. was laid; would have been 参考答案:C 答案解析:和过去事实相反的虚拟语气。