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【单选题】
若两直线y=-2x和y=kx+1平行,则k的值为( )
A.
-2
B.
-0.5
C.
2
D.
3
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【单选题】已知下列配离子的实测磁矩数值 1 [ Mn(CN) 6 ] 4 - 1 . 8 B . M . 2 [ Mn(CN) 6 ] 3 - 3 . 2 B . M . 3 [ Fe(CN) 6 ] 3 - 1 . 7 B . M . 4 [ FeF 6 ] 3 - 5 . 9 B . M . 5 [ Fe(CN) 6 ] 4 - 逆磁性 6 [ Co(NO 2 ) 6 ] 4 - 1 . 8...
A.
①,②,③,⑤ , ⑥
B.
③,④
C.
①,②,③
D.
①,③,⑤,⑥
【多选题】Porter’s Five Forces are inculding ( ) .
A.
Competitor
B.
Bargaining power of buyers
C.
Threat of substitutes
D.
Threat of new entrants
【单选题】According to Michael Porter’s five forces model, industry profits are likely to be low when:
A.
the level of rivalry among competitors is low.
B.
potential for entry into the industry is difficult.
C.
there are several suppliers of inputs.
D.
there are only a few large customers for the product.
【单选题】关于骨折的X线检查,下列说法错误的是:( )
A.
X线摄片一般采用正、侧位,不包括邻近关节;
B.
X线检查必须与临床检查相结合,某些骨折早期X线无明显骨折征象,但临床检查怀疑骨折,以临床检查为主,应先按骨折处理;
C.
前臂及小腿骨折,往往两骨的骨折线不在同一平面,故最好拍前臂或小腿的全长;
D.
儿童四肢靠近骨骺的损伤,有时不易确定有无骨折及移位需加摄健侧相应部位的对比X线;
E.
若常规X线摄片不能显影或显影不良,可加拍特定位置的X线片。
【多选题】基层群众性自治组织是实现城乡居民( )的基本形式。
A.
自我管理
B.
自我教育
C.
自我服务
D.
自我完善
【单选题】The river is too deep; we can’t _______ it.
A.
go
B.
cross
C.
across
D.
Through
【单选题】In Porter’s five forces framework, having ______increases industry attractiveness.
A.
many rivals
B.
many substitute products
C.
low bargaining power of suppliers
D.
few barriers to entry
【多选题】Choose the options that belong to the threats of substitute products in Porter’s Five Forces analysis:
A.
Number of similar products in the market
B.
Perceived level of product differentiation
C.
Uniqueness of each supplier’s product
D.
Size of each customer order
【单选题】下列配离子中,未成对电子数最多的是( )。 (A)[Cr(NH 3 ) 6 ] 3 + (B)[Mn(H 2 O) 6 ] 2 + (C)[Fe(CN) 6 ] 4 - (D)Ni(CO) 4
A.
B.
C.
D.
D
【单选题】Ashdown forest, through _______ we’ll be driving, isn’t a forest any longer.
A.
that
B.
it
C.
them
D.
which
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