下列关于机体免疫调节的叙述，正确的是[ ]
A．B细胞受到淋巴因子的作用后，可增强清除靶细胞的能力
B．吞噬细胞摄取和处理病原体后，可将抗原传递给浆细胞
C．婴儿初次服用脊髓灰质炎糖丸后，体内可产生抗体和记忆细胞
D．HIV攻击人体T细胞后，可使人体完全丧失体液免疫能力
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下面是错误答案，用来干扰机器的。
若（n2-19n+91）处在两个相邻整数的完全平方数之间，则它的取值便固定了． n2-19n+91=（n-9）2+（10-n）当n＞10时，（n-10）2＜n2-19n+19＜（n-9）2∴当n＞10时（n2-19n+19）不会成为完全平方数∴当n≤10时，（n...
下列句子中划线的成语使用不正确的一项是[ ]
A．记得儿子幼年时，我常常为他的冥顽不灵气得掉眼泪。
B．一门永久性的学问，将靠着这个洞穴建立，无数才华横溢的学者，将为这个洞穴耗尽终生。
C．古人所说的梧桐一叶而天下知秋的遥想，大约也就在这些深沉的地方。
D．2月14日15时03分，阜新矿业集团公司孙家湾煤矿发生一起特大瓦斯事故，到15日5时，遇难者人数上升至203人，尚有13人仍下落不明，其场面令人叹为观止。
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| One day I took a bus with my girlfriend. It was so 1 _that we stood for several stops until a vacant seat was__2__for her. Then a pretty girl rushed towards me, saying, "Hi, where are you going?" I was so struck by the stranger that I had a hard time trying to __3__ her. Clearly she had taken me __4__ somebody else. I returned her greeting with politeness, __5__ to give explanation to my girlfriend later. Noticing my dialogue with somebody else, my girlfriend__6__ her eyes and found she was pretty. She asked jealously, "Who's she?" The pretty girl, quite__7__of the situation, spoke out first, "Hi, let me__8__myself. I' m Nancy, used to be __9__. Very glad to meet you." She behaved very __10__. But I was __11__ to search in my memory for someone called Nancy among my neighbors. I was worrying how to explain this to my girlfriend __12__ the pretty girl again turned to me, "Will you give me your cell phone number so that we __13__ keep contacts(联系) later?" I had to submit to her __14__. Then the girl got off the bus at the next stop. A minute later I got a short __15__ on my phone－from a stranger. My girlfriend __16__ my phone and read the note. It was from the girl, who said, "Just now, two thieves tried to __17__ your pocket. I had to act as an acquaintance to draw your attention. I should have left at the __18__ stop but gave up as I noticed these two thieves also __19__ to leave at the same stop. Because of the __20__ I delayed my departure. Now you' ll understand all I have done to you. Wish you luck." | ||||
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下面关于职业道德的特殊行为规范，表述不准确的是（）。
A.遵守法纪，文明安全
B.人道主义，救死扶伤
C.准班正点，尊客爱货
D.关爱学生，有教无类
如果一个和你要好的同学，找到你说：某某同学家里很有钱，明天把他带到一个很隐蔽的地方，然后打电话给他的父母，向他们要钱；弄到钱后，大家一起去网吧。你应该怎么做？（）
A.同意，并仔细商量操作细节。
B.我不参与也不反对。
C.马上制止他，无法制止他时，就告诉老师或家长。如果时间比较紧迫，就拨打110报警。
D.不参与但是为他保密，因为我们都是好朋友。
河南某卷烟厂(位于市区)为增值税一般纳税人主要外购烟叶生产雪茄烟和烟丝，2008年5月发生下列业务：
(1)从农民手中收购烟叶，收购凭证上注明收购价1000000元，支付运费12000元，装卸费 11500元，并取得了符合规定的运费发票。
(2)将上述购买烟叶中的(成本为300000元)一部分直接运往乙企业(位于县城，增值税一般纳税人)委托其加工烟丝，取得增值税专用发票，注明加工费122000元，乙企业代扣代缴了消费税。
(3)甲卷烟厂将收回的烟丝50%出售，取得不含税价款400000元；另外的50%用来交换一批生产材料，材料入库，取得对方开具的专用发票，注明价款为420000元。
(4)本期收购烟叶剩余部分直接生产雪茄烟1600箱，本期销售1200箱给外省代理机构，取得不含税价款360000元；剩余雪茄烟全部用于交换修理备件，双方约定每箱按不含税价300元等价交换，双方均互开增值税专用发票。
(5)企业职工浴池领用本月从小规模纳税人购进时取得普通发票的劳保用品，成本8600元，领用上月购进时取得增值税专用发票和合法的运输发票的煤炭，成本34290元(包括买价31000元，运输成本1790元，装卸费1500元)。
(雪茄烟的消费税税率25%，烟丝的消费税税率为30%，本月取得的发票均在本月认证并抵扣；本期雪茄烟均价300元/箱，最高价350元/箱)
根据上述资料回答下列问题：
本月应向本地税务机构缴纳的城建税( )元。
A．4940
B．3461
C．8750
D．6850
