林场种100棵树苗,死了3棵,又补种了3棵,共成活100棵,成活率为100%.______.
100100+3×100%≈96.12%;
故答案为:错误.
按要求完成句子。
1.It usually takes me twenty mmutes to walk to school.(先改为一般疑问句,然后对画线部分提问)
①__________ it usually _______ you twenty minutes to walk to school?
②________ _________ does it usually take you to walk to school?
2. He takes the school bus to school every day.(改为否定句)
He ________ _________ the school bus to school every day.
3.He often goes to work by car.(对画线部分提问)
_______ ________ he often________to work?
4. Did your aunt walk to her office last Monday?(改为同义句)
Did your aunt go to her office _________ ________ last Monday?
女性,50岁。十二指肠溃疡病史8年,近2年常阵发性上腹疼痛、腹胀以及反复呕吐,呕吐多发生于下午,为宿食,呈腐败酸臭味,量多,不含胆汁,呕吐后腹痛、腹胀缓解。查体见贫血貌,上腹隆起,可见胃型,振水音(+),移动性浊音(-),肠鸣音正常。
下列哪项是首选的治疗方法()
A.严格内科治疗8~12周,无效后手术
B.毕Ⅰ式胃大部切除术
C.毕Ⅱ式胃大部切除术
D.十二指肠空肠吻合术
E.胃癌根治术