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【单选题】
下列说法不正确的是A.
北方地区历史文化悠久，名胜古迹多，人文旅游资源极为丰富
B.
南方地区的有色金属资源相当丰富，其西部水能资源极为丰富
C.
青藏地区的主体是青藏高原，主要包括西藏自治区、青海省和四川省
D.
西北地区的年降水量表现出由逐渐减少的态势
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举一反三
【单选题】健身锻炼适宜的相应强度,( )的描述是错误的。
A.
40～ 50% ～ 85% 的储备摄氧量（ VO2R ）
B.
40 ～ 50% ～ 85% 的储备心率（ HRR ）
C.
64～ 70% ～ 94% 的最大心率（ HRmax ）
D.
年轻人的不同强度运动时的 RPE 分值乘于 8 ，约等于当时的心率
【单选题】It is implied that some computer consultants consider Govnet to be almost impossible because
A.
it will entail considerable cost.
B.
there isn't a reliable network infrastructure yet.
C.
it will be difficult for Govnet to fit into the Internet.
D.
no telecommunications company can afford it.
【单选题】It is implied that it is the government's intention to ______.
A.
improve the quality of TV programs
B.
try to offer greater choice over public service systems
C.
make people realize that some lovers arc interchangeable
D.
encourage the downloading of a variety of ring tones
【单选题】It is implied that cloning draws fierce criticism from ethicists, religious leaders and US President Bush because______.
A.
it is conceptually hyped
B.
it is morally controversial
C.
it is extremely difficult
D.
it is not scientifically viable
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