It’s an annual back-to-school routine. One morning you wave goodbye, and that (21) evening you’re burning the mid-night oil in sympathy. In the race to improve educational standards, (22) are throwing the books at kids. (23) elementary school students are complaining of homework fatigue. What’s a well-meaning parent to do
As hard as (24) may be, sit back and chill experts advise. Though you’ve got to get them to do it, (25) helping too much, or even examining answers too carefully, you may keep them (26) doing it by themselves. "! wouldn’t advise a parent to check every (27) assignment," says psychologist John Rosemond, author of Ending the Tough Homework, "There’s a (28) of appreciation for trial and error. Let your children (29) the grade they deserve."
Many experts believe parents should gently look over the work of younger children and ask the
A. exercises
B. defects
C. mistakes
D. tests
| Every year gray whales migrate from the
Bering Sea in Alaska to the Baja Peninsula in Mexico. Eleven gray whales have died in the San Francisco Bay in the last three weeks. No one knows why the whales are dying. Last year 270 whales died along the whales’ migration route. Many people think starvation is the cause. This year the dead whales seem to have more blubber (fat) on them. Twenty years ago, the gray whale was listed as an endangered species. Some scientists think that the larger number of whales makes it hard to find enough food. More whales create more pressure on the food supply, a supply that some scientists say may have dwindled as a result of the warm waters of El Nino. Most of the whales have been dead for many days before they are found and studied. This makes it hard to find the reason for deat A. Twice as many. B. Three times as many. C. Half as many. D. About the same. [单选题]把两个或两个以上的电阻接到电路中的两点之间，电阻两端承受同一“ ”的电路，叫电阻并联电路。
A.电流 B.电压 C.电势 D.电感 [单选题]提速道岔断相保护器DBQ输入电流为交流( )。
A.0.5A～2A B.1A～3A C.1A～3.5A D.1A～4A [判断题] 井队配12套正压式呼吸器，摆放在清洁、卫生、便于迅速取用的位置，配5套备用气瓶、1台空气压缩机；司钻每月至少对其检查一次（有检查记录），使用前后由使用人员检查。
A.正确 B.错误 [单项选择]不属于白芍常用的炮制品是（）
A. 酒白芍 B. 炒白芍 C. 醋白芍 D. 土炒白芍 E. 盐白芍 [判断题]层高是指楼地面到楼板下凸出物的底面的垂直距离。
[多选题]火灾事故责任者应承担的责任可能有:()。
A.刑事责任 B.民事责任 C.行政责任 D.违反党纪政纪的责任 E.道义责任 [简答题]试列举四种大肠杆菌染色质DNA复制起始所必需的蛋白因子。
[单项选择]
Some of the concerns surrounding Turkey’s application to join the European Union, to be (1) on by the EU’s Council of Ministers on December 17th, are economic—in particular, the country’s relative poverty. Its GDP per head is less than a third of the average for the 15 pre-2004 members of the EU. (2) it is not far off that of Latvia—one of the ten new members which (3) on May 1st 2004, and it is much the same as (4) of two countries, Bulgaria and Romania, which this week concluded (5) talks with the EU that could make them full members on January 1st 2007. [多选题] 对于电力系统中的接地和接零,正确的说法是:( )。
A.将设备和用电装置的中性点、外壳或支架与接地装置用导体作良好的电气连接叫 做接地; B.将电气设备和用电装置的金属外壳与系统零线相接叫做接零; C.TN-S 系统中的同一电气设备的金属外壳既要直接接地,又要直接接零; D.将电气设备和用电装置的金属外壳与系统零线相接叫做接地兼作接零; E.TN-S 系统中的同一电气设备的金属外壳要接地,不能直接接零。 [单选题]家用电器的保险丝只能装在( )上
A.零线 B.火线 C.地线 [单选题]焊接时，使焊条药皮发红的热量是( )。
A.电阻热 B.电弧热 C.化学热 [多选题]避雷针的全面巡视应包括（）。
A.避雷针接地引下线焊接处无开裂，压接螺栓无松动，连接处无锈蚀 B.避雷针连接部件螺栓无松动，脱落;连接部件本体无裂纹 C.镀锌层表面应光滑、连续、完整，呈灰色或暗灰色，无黄色、铁红色、鼓泡及起皮等异常现象。 D.钢管避雷针排水孔无堵塞，出水孔无锈蚀。 E.避雷针基础完好，无沉降、破损、酥松、裂纹及露筋等现象。 F 避雷针焊接接头无裂纹、锈蚀、镀锌层脱落现象。 [多项选择]某发明专利申请的权利要求限定了组分X的含量为0.1%～0.5%。说明书中记载，对于组分X，其优选的范围是0.1%～1.5%，更优选的范围是0.8%～1.5%。说明书实施例中给出了多个组分X的点值，分别是0.1%、0.3%、0.5%、0.8%、1.3%、1.5%、2%以及2.1%。将权利要求中组分X的含量修改为下列哪些数值没有超出原说明书和权利要求书记载的范围
A. 0.1%～1.3% B. 2.1% C. 1.3%～1.7% D. 0.1%～0.3% [单选题]下列仪表属于比较式仪表的是()。
A.万用表 B.接地电阻测量仪 C.兆欧表 [判断题]国家实行生产安全事故责任追究制度，依照本法和有关法律、法规的规定，追究生产安全事故责任人员的法律责任。
A.正确 B.错误 [单项选择]男，78岁，呕吐，腹胀21小时，无明显腹痛，既往有消化道溃疡病史，上腹部压痛，腹肌紧张，血压80/50mmHg，脉搏108次／分，血淀粉酶250U，血钙1.7mmol/L。影响预后的因素有（）
A. 年龄大，低钙血症休克 B. 年龄大，血淀粉酶非典型增高 C. 低钙血症，血淀粉酶<500U D. 休克，血淀粉酶<500U E. 无明显腹痛，血淀粉酶<500U 我来回答: 提交
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