豌豆成熟豆荚绿色对黄色是显性，让杂合子绿色豆荚豌豆的雌蕊接受黄色豆荚豌豆的花粉，所结出数十个豆荚的颜色及比例是[ ]
A．绿色：黄色=1：1
B．绿色：黄色=3：1
C．全部为黄色
D．全部为绿色
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0415/8eaf175d9d189bb5004455dfe76272c4.html
下面是错误答案，用来干扰机器的。
5Ω，5Ω，5Ω根据R =" U" / I=3V/0.6A=5Ω,电阻是导体本身一种属性，无论其两端电压是多少或者是否断开状态，电阻的阻值不变，所以仍然是5Ω。
Electronic mail has become an extremely important and popular means of communication.
The convenience and efficiency of electronic mail are threatened by the extremely rapid growth in the volume of unsolicited commercial electronic mail. Unsolicited commercial electronic mail is currently estimated to account for over half of all electronic mail traffic, up from an estimated 7 percent in 2001, and the volume continues to rise. Most of these messages are fraudulent or deceptive in one or more respects.
The receipt of unsolicited commercial electronic mail may result in costs to recipients who cannot refuse to accept such mail and who incur costs for the storage of such mail, or for the time spent accessing, reviewing, and discarding such mail, or for both. The receipt of a large number of unwanted messages also decreases the convenience of electronic mail and creates a risk that wanted electronic mail messages, both commercial and noncommercial, will be lost, overlooked, or discarded amidst the larger volume of unwanted messages, thus reducing the reliability and usefulness of electronic mail to the recipient. Some commercial electronic mail contains material that many recipients may consider vulgar or pornographic in nature.
The growth in unsolicited commercial electronic mail imposes significant monetary costs on providers of Internet access services, businesses, and educational and nonprofit institutions that carry and receive such mail, as there is a finite volume of mail that such providers, businesses, and institutions can handle without further investment in infrastructure. Many senders of unsolicited commercial electronic mail purposefully disguise the source of such mail.
Many senders of unsolicited commercial electronic mail purposefully include misleading information in the messages’ subject lines in order to induce the recipients to view the messages. While some senders of commercial electronic mail messages provide simple and reliable ways for recipients to reject (or "opt-out" of) receipt of commercial electronic mail from such senders in the future, other senders provide no such "opt-out" mechanism, or refuse to honor the requests of recipients not to receive electronic mail from such senders in the future, or both.
Many senders of bulk unsolicited commercial electronic mail use computer programs to gather large numbers of electronic mail addresses on an automated basis from Internet websites or online services where users must post their addresses in order to make full use of the website or service.
The problems associated with the rapid growth and abuse of unsolicited commercial electronic mail cannot be solved by the government alone. The development and adoption of technological approaches and the pursuit of cooperative efforts with other countries will be necessary as well.
"Disguise" in Paragraph 4 is closest in meaning to ______.
A．reveal
B．hide
C．deliver
D．post
关于采购发票对等核销，以下哪些说法是正确的？（）
A.对等核销的必须分别为红字和蓝字的已审核采购发票
B.对等核销的发票其事务类型必须一致，即蓝字采购普通发票对应红字采购普通发票、蓝字采购专用发票对应红字采购专用发票
C.对等核销的单据必须是两张业务相同、数据相反的单据，包括两张单据的供应商、采购方式、物料、辅助属性、条目数等内容均一致，而每个条目的数量相反（即相加为零）的情形下才能予以对等核销
D.反核销的两张发票不能生成记账凭证
(各备选选项中，至少有一个符合题意)
| 某城市规划建设4车道高速公路，全长80km，设计行车速度为80km/h，路基宽度为24.5m。全线有互通式立交5处、跨河特大桥1座(1750m)，大桥5座 (共1640m)、隧道4座(共3800m)，其中单洞长隧道1座(2400m)。公路位于规划未建成区，起点接城市环路，沿线为山岭重丘区，相对高差50-300m，线路穿岭跨河，沿山谷行进，过山间盆地，有支线通向旅游区。该公路征用土地640hm2，其中农田150hm2，林地300hm2，草坡和未利用土地140hm2，其余为水塘宅基地等。土石方量8640×103m3，有高填方段2400m。项目总投资为38亿元。 该项目所在区域雨量充沛，夏多暴雨。森林覆盖率约为40%，包括人工森林和天然林。公路沿线农业经济发达，村庄较密集，穿越2个村庄，附近有2个较大乡镇，另有山岳型风景名胜区和农业观光区各1处。 |
农业生态调查主要内容是( )。
A．覆盖率、生物量、组成的物种等
B．农业土地生产力、农业土地质量
C．侵蚀面积、程度、侵蚀量及损失
D．占地类型、面积、占用基本农田数量
以下哪一项不是在编制项目计划时必须做出的权衡决策（）
A、使用熟练还是不熟练的劳动力
B、比较供货方应该获得的利润和其他供货方以前收到的利润
C、自造还是把工作承包给分包商
D、成本/质量的重要性
在地方自治制警政管理体制中，警察受地方政府领导，中央政府只起监督作用。 ( )
