更多“Lb4B3087金刚石钻头扩孔器的作用是修整孔径、导正钻头和”相关的问题
车辆因转向或擦撞引起的侧滑，（）。
A . A、不可使用行车制动
B . B、可缓踏制动踏板
C . C、可使用行车制动
D . D、可使用间歇制动
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可以在电流互感器二次回路中带电工作。第六章P104
A.对 B.错
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对于联想G405S的摄像头厚度描述正确的是（）
A.130万像素 B.人脸优先识别技术 C.200万像素 D.30万像素
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某施工队计划用120个劳动力在规定时间内完成一定的挖土任务。施工25天后，因调走30人，于是每人每天必须多挖1立方米土才能在规定时间内完成任务。问在25天后每人每天挖土多少立方米( )
A．3
B．4
C．5
D．6
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有以下程序: #include void main( ) { intn,*p=NULL; *p=&n; printf("Inputn:");scanf("%d",&p);printf("outputn:");printf("%d\n",p); } 该程序试图通过指针 p 为变量 n 读入数据并输出,但程序有多处错误,以下语句正确的是( )
A. int n,*p=NULL; B. *p=&n; C. *p=&n;scanf("%d",&p); D. printf("%d\n",p);
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《兵车行》是一首______
A．叙事诗
B．送别诗
C．抒情诗
D．讽喻诗
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怀疑伤寒感染，进行肥达试验，病程中逐周复查，若效价依次递增或恢复期效价增加多少倍时有意义（）
A.≥2
B.≥4
C.≥8
D.≥16
E.≥32
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A．染色体核型为：46，XX(或XY)/47，+21 B．染色体核型为：45，XO/46，XX C．血苯丙氨酸浓度＞0.24 mmol/L(4mg/ dl) D．染色体核型为：48，XXXY E．血清铜蓝蛋白值：50mg/L肝豆状核变性
A.染色体核型为：46，XX(或XY)/47，+21
B.染色体核型为：45，XO/46，XX
C.血苯丙氨酸浓度＞0.24
D.染色体核型为：48，XXXY
E.血清铜蓝蛋白值：50mg/L
肝豆状核变性
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小儿脑耗氧量在基础代谢状态下占总耗氧量的（）
A . 20%
B . 40%
C . 45%
D . 50%
E . 60%
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混凝土按用途划分的是（）。
A.沥青混凝土、水泥混凝土、普通混凝土
B.造壳混凝土、水下混凝土、碾压混凝土
C.防水混凝土、装饰混凝土、补偿收缩混凝土
D.重混凝土、中混凝土、轻混凝土
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学前教育的对象年龄是（)岁。A0－3岁B3－6C0－6岁D2－6岁
学前教育的对象年龄是()岁。A0-3岁B3-6C0-6岁D2-6岁
A0-3岁B3-6C0-6岁D2-6岁
B3-6C0-6岁D2-6岁
C0-6岁D2-6岁
D2-6岁
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Passage Three Teaching children to read well from the start is the most important task of elementary schools. But relying on educators to approach this task correctly can be a great mistake. Many schools continue to employ instructional methods that have been proven ineffective. The staying power of the "look-say" or "whole-word" method of teaching beginning reading is perhaps the most flagrant example of this failure to instruct effectively. The whole-word approach to reading stresses the meaning of words over the meaning of letters, thinking over decoding, developing a sight vocabulary of familiar words over developing the ability to unlock the pronunciation of unfamiliar words. It fits in with the serf-directed, "learning how to learn" activities recommended by advocates of "open" classrooms and with the concept that children have to be developmentally ready to begin reading. Before 1963, no major publisher put out anything but these "Run- Spot-Run" readers. However, in 1955, Rudolf Flesch touched off what has been called "the great debate" in beginning reading. In his best-seller Why Johnny Can’t Read, Flesch indicted(控诉)the nation’s public schools for miseducating students by using the look-say method. He said-and mere scholarly studies by Jeane Chall and Rovert Dykstra later confirmed-that another approach to beginning reading, founded on phonics(声学), is far superior. Systematic phonics first teaches children to associate letters and letter combinations with sounds; it then teaches them how to blend these sounds together to make words. Rather than building up a relatively limited vocabulary of memorized words, it imparts a code by which the pronunciations of the vast majority of the most common words in the English language can be learned. Phonics does not devalue the importance of thinking about the meaning of words and sentences; it simply recognizes that decoding is the logical and necessary first step.
A．only logical and naturalB．the expected positionC．probably a mistakeD．merely effective instruction
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某市新建一条贯穿城市南北，宽40rn的主干道。该项目由某市政建设工程总公司中标承建。测量交接及复测记录DL2.2中城建档案馆需归档保存的是( )。
A.2中城建档案馆需归档保存的是(B.导线点复测记录B.水准点复测记录C.测量仪器及计量设备标定证书D.土的承载比(C.无机结合料7d无侧限抗压强度试验报告
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妊娠期妇女应用氨基糖苷类抗生素可致胎儿( )。
A．神经中枢抑制和神经系统损害
B．畸形
C．免疫机制改变
D．严重出血或死胎
E．永久性耳聋及肾脏损害
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建立培训质量管理体系的必备条件有哪一项（）。
A.提高企业文化师的培训质量 B.已经极为基础 C.符合培训活动内在规律的职责分工 D.事先培训活动的高质量
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