| More than 6000 children were expelled
(开除) from US schools last year for bringing guns and bombs to school, the US
Department of Education said on May 8. The department gave a report to the expulsions (开除) as saying handguns accounted for 58 percent of the 6093 expulsions in 1996—1997, against 7 percent for rifles (步枪) or shotguns and 35 percent for other types of firearms. "The report is a clear sign that our nation’s public schools are cracking down (严惩) on students who bring guns to school," Education Secretary Richard Riley said in a statement. "We need to be tough-minded about keeping guns out of our schools and do everything to keep our children safe." In March 1997, an 11 years old boy and 13 years old boy using handguns and rifles shot dead four children and a teacher at a school in Jonesboro, Arkansas. In Octo A. the number of the expulsions is not large B. the number of the expulsions is wrong C. there are soldiers hiding among the students D. guns are out of control in US schools [单选题]污染跑道上终止起飞：
A. 即使在低速情况下，也不能因非关键问题终止起飞 B. 在低速情况下，也不能因关键问题终止起飞 C. 即使在低速情况下，也能因关键问题起飞 [单选题]使用单阀制动，单作管压力直接控制作用阀，只要（ ）内有压力空气，机车就可始终保持制动状态。
A.均衡风缸 B.总风缸 C.工作风缸 [判断题]精原细胞瘤、黑色素瘤和淋巴瘤是以“瘤”为词尾，但他们均为恶性肿瘤。( )
A.正确 B.错误 [单选题]F5-1206的液位LI12046高高报是
A.0.75 B.0.7 C.0.85 D.0.8 [判断题]班主任工作艺术的“艺”字的本意是种植：引申为技能才能，后又引申为标准准则。
[单项选择]
A. 维生素C B. 保泰松 C. 肾上腺皮质激素 D. 抗生素 E. 消炎痛 [单项选择]关于细菌性痢疾所累积结肠部位的病理改变哪项正确（）
A. 弥漫性伪膜形成 B. 肠壁肌层溃疡 C. 极易穿孔 D. 黏膜固有层炎症和溃疡 E. 中毒性痢疾黏膜病变重 [多项选择]天冬氨酸、乳酸和甘油异生为糖时，所经历的共同反应是
A. 磷酸烯醇式丙酮酸-2→磷酸甘油酸 B. 3-磷酸甘油酸→1，3-二磷酸甘油酸 C. 3-磷酸甘油醛→磷酸二羟丙酮 D. 1，6-二磷酸果糖→6-磷酸果糖 我来回答: 提交
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