下列哪些措施可以增强北京的国际竞争力和服务功能①加大基础设施的建设力度②规划和建

题型:选择题

问题:

下列哪些措施可以增强北京的国际竞争力和服务功能①加大基础设施的建设力度②规划和建设重点功能区③建设城市快速轨道交通和高速公路④发展高新技术产业[ ]

A.①

B.①②

C.②③④

D.①②③④

考点:北京
题型:选择题

明太祖朱元璋说:“天下之大,必建藩屏,上卫国家,下安生民,今诸子既长,宜各有爵封,分镇诸国。朕非私其亲,乃遵古先哲王之制,为久安长治之计。”同时据《明史稿》记载,明成祖继位后,明代藩王“列爵而不临民,分藩而不锡土。”两则材料说明 [ ]

A.明朝照搬了西周的分封制

B.明朝放弃了中央集权制

C.分封制是历史发展的潮流

D.宗法制依然是分封制的核心

题型:选择题

若△ABC△A′B′C′,且∠A=45°,∠B=30°,则∠C′=______度.

题型:选择题

短文填空 先通读下面的短文,然后根据短文内容和所给首字母,在空格内填入一个适当的单词,使短文意思完整。所填单词必须在标有题号的横线上完整写出。(本大题共10空,每空0.5分,共5分)

At the age of 13, Miles Schuman, from Maine(缅因州), US, is already a good host of an Internet-radio program.

Schuman s  小题1:   the program three years ago. He found a website c  小题2:    Blog Talk Radio. Users can make their o  小题3:   radio shows on the website.

Schuman signed up. He loves rock music. So he bought a microphone and started broadcasting talks about rock music from his home. Later, he even i 小题4:   some famous rock stars. At first, he just asked a l  小题5:  of usual questions. But t  小题6:  practice, he can now ask deep questions. The half-hour program is p 小题7:  . When a new show is b    小题8:    every Sunday, 3,000 to 5,000 people get to listen .

Schuman told the newspaper The Working Waterfront that he would k  小题9:   doing this show, because he loves music and h  小题10: the radio show.

题型:选择题

某次数学考试中,9个同学的平均分是72,去掉一个转学同学的成绩后,剩下的同学的平均分是为78分,转学走的同学的成绩为______分.

题型:选择题

对表 1和表 2进行( )关系运算可以得到表 3。

A.投影

B.选择

C.自然连接

D.笛卡尔积

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