阿立哌唑(A)是一种新的抗精神分裂症药物，可由化合物B、C、D在有机溶剂中通过以

小华想要把一个表头G改装成一个电流表，表头的满偏电•流、内阻均未知．为了能够顺利完成改装，他需先测定表头的内阻和满偏电流，然后再根据测量结果进行改装，小华的操作步骤如下：

（1）若采用如图所示的电路测表头G的内阻，其中R为电阻箱，R₀为阻值合适的滑动变阻器，G₀为标准电流表，S₂为单刀双掷开关，测量步骤如下：

①调节滑动变阻器滑片，使其处在滑动变阻器的最左端；调节电阻箱的阻值，并使其阻值最大，然后闭合开关S₁；

②把单刀双掷开关S₂拨向A，调节滑动变阻器Ro的阻值，使表头G满偏，此时标准电流表Go的示数I_l=2mA；

③把单刀双掷开关S₂拨向B，保持滑动变阻器R₀不变，调节电阻箱R的阻值，使标准电流表Go的示数I₂=2mA，读出此时电阻箱的阻值为R=59.8Ω．由上述实验可知，表头G的内阻Rg=______，满偏电流Ig=______．

（2）现在想把表头改装成量程为0.6A的电流表，小华需要将表头G______（填“串”或“并”）连一个阻值为______Ω的电阻．

根据课文内容完成下面短文(注意括号中的提示)。

     At the end of the 16th century, English was only spoken by people in England. They were native English

speakers. However, 1______ English language has changed quite a lot over the last four centuries. Old English

sounded more 2______ less like German for it was 3______ on German, but modern English sounds more like

French than German 4______ 1ater on England was once ruled by the French.

     Two men had great 5______ (影响) on the English changes. One was Samuel Johnson, who wrote his

dictionary and the other was Noah Webster, 6______ wrote The American Dictionary of the English Language

7______ gave American English its own 8______ (身份).

     Today, the largest number of people 9______ (speak) English may be in China. A lot of Chinese people

speak English 10______ a foreign language.

翻译句子。

1.我们国家自然资源很丰富。

2.伊拉克有充足的石油供应。

朝鲜宣布成功进行第三次地下核试验后，引起了国际社会的强烈反应。实现半岛无核化、防止核扩散、维护东北亚和平与稳定，是中方的坚定立场。这表明

①我国外交政策的宗旨与联合国宗旨具有一致性     

②国家间的共同利益是国家合作的基础

③和平问题是防止新的世界战争的问题  

④只有互相尊重、平等协商，才能妥善解决国际争端

A．①②

B．②③

C．①③

D．②④