【名词&注释】
生产方式(mode of production)、生活方式(life style)、调节作用(regulation)、主持人(host)、大脑皮层(cerebral cortex)、豆科植物(legume)、神经中枢(nerve center)、福建人(jan goan)、根瘤细菌、四海为家
[单选题]根瘤细菌与豆科植物根的关系是( )。
A. 共生
B. 寄生
C. 腐生
D. 竞争
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举一反三：
[单选题]DImagine，one day，getting out of bed in Beijing and being at your office in Shanghai in only a couple of hours，and then，after a full day of work，going back home to Beijing and having dinner there．
A. And that’s not a11．China has an even greater high—speed railway plan—to connect the country with Southeast Asia，and eventually Eastern Europe．
C. The first would possibly connect Kunming withSingapore via Vietnam and Malaysia．Another could start in Urumqi and go through Kazakhstan and Uzbekistan，and possibly to Germany．The third would start in the northeast and go north through Russia and then into Western Europe．
E. And the trains would be able to go 346 kilometers an hour，almost as fast as some airplanes．
F. It covers 1,069 kilometers in about three hours． Of course，there are some technical challenges to overcome．There are so many issues that need to be settled，such as safety，rail gauge(轨距)，maintenance of railway tracks．So，it’s important to pay attention to every detail．
G. China is already spending hundreds of billions of yuan on domestic railway expansion．
H. Resources from those countries could stream into China to sustain development．
J. We foresee that in the coming decades，millions of people will migrate to the western regions，where the land is empty and resources unused．With high-speed trains，people will set up factories and business centers in the west once and for a11．And they’11 trade with Central Asian and Eastern European countries．
K. China’s new high-speed railway plan will be a win-win project because ．
L. China will get much-needed resources and develop its western regions
M. China and the countries involved will benefit from the project in various ways
N. China will develop its railway system and communication with other countries
O. the foreign countries involved will develop their railway transportation，business and tourism
[单选题]有关神经系统的叙述，错误的是
A. 脊髓、脑干属于中枢神经系统
B. 位于大脑皮层的呼吸中枢是维持生命的必要中枢
C. 神经系统调节机体活动的基本方式是反射
D. 高级神经中枢(nerve center)和低级神经中枢(nerve center)对躯体运动都有调节作用
[单选题]处于不萌发状态的种子称为休眠种子。( )
A. 正确
B. 错误
[单选题]古代有“闽人以海为田”之说，这种说法突出反映了福建人(jan goan)
A. 临海而居的居住方式
B. 围海造田的生产方式
C. 靠海谋生的生存方式
D. 四海为家的生活方式
[单选题]41________
A. suggested
B. explained
C. announced
D. predicted
[单选题]单叶的叶柄与复叶小叶柄基部均有腋芽。( )
A. 正确
B. 错误
[单选题]24 As a child, Jack studied in a village school，——is named after his grandfather．
A. which
B. where
C. what
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