万宝路香烟

Most plants can make their own food from sunlight, (1) some have discovered that stealing is an easier way to live. Thousands of plant species get by (2) photosynthesizing, and over 400 of these species seem to live by pilfering sugars from an underground (3) of fungi(真菌). But in (4) a handful of these plants has this modus operandi been traced to a relatively obscure fungus. To find out how (5) are (6) , mycologist Martin Bidartondo of the University of California at Berkeley and his team looked in their roots. What they found were (7) of a common type of fungus, so (8) that it is found in nearly 70 percent of all plants. The presence of this common fungus in these plants not only (9) at how they survive, says Bidartondo, but also suggests that many ordinary plants might prosper from a little looting, too.

Plants have (10) relations to get what they need to survive. Normal, (11) plants can make their own carbohydrates through photosynthesis, but they still need minerals. Most plants have (12) a symbiotic relationship with a (13) network of what are called my corrhizal fungi, which lies beneath the forest (14) . The fungi help green plants absorb minerals through their roots, and (15) , the plants normally (16) the fungi with sugars, or carbon with a number of plants sharing the same fungal web, it was perhaps (17) that a few cheaters—dubbed epiparasites—would evolve to beat the system. (18) , these plants reversed the flow of carbon, (19) it into their roots from the fungi (20) releasing it as "payment.\

16（）

A.offer

B.equip

C.help

D.provide

对税法规定应当缴纳税款的，税务机关应当在开具发票的同时征收。()

2002年6月6日，甲与乙签订了一份开发用于特种设备的变频装置的技术合同，双方约定乙在合同生效后的3个月内将该变频装置的图纸一份及样品一套送交甲，专利权归甲所有，甲支付乙开发费用100万元。2002年8月，甲取得该变频装置后，于2003年3月5日向中国专利局提出专利申请，经专利局审查通过，于2004年1月7日授予了发明专利权。随后甲与丙于2004年11月18日签订了专利权转让合同，并于2004年12月18日向专利局申请登记，经专利局审查于2005年1月10日予以登记，并在同年的2月10日的专利专刊上予以公告。当丙实施该专利技术时，发现市场上已有此种装置出售，经调查系甲所为，遂要求甲停止销售并收回产品，甲解释其销售的产品为以前剩余积压的产品，不同意收回。根据以上资料，回答下列问题：

该变频装置的专利权期限为( )年。

A．5

B．10

C．15

D．20

______，期货结算机构对会员的盈亏进行计算。

A．下一交易日
B．两个工作日内
C．每一交易日结束后
D．两天后

为了使命令按钮(名称为Command1)右移200，应使用的语句是

A．Command1.Move-200

B．Command1.Move200

C．CommmldLeft=Command1.Left+200

D．Command1.Left=Command1.Left-200