已知H<sub>A</sub>=24.3m,H<sub>B</sub>=26.3m,D<sub>AB</sub>=400m,则坡度i<sub>BA</sub>=()。
A、0.05
B、-0.05
C、5%
D、-0.5%
A、0.05
B、-0.05
C、5%
D、-0.5%
A、∆H<sub>3sub>=∆H<sub>1sub>+∆H<sub>2sub> B、∆H<sub>3sub>=∆H<sub>1sub>-∆H<sub>2sub> C、∆H<sub>3sub>=∆H<sub>2sub>-∆H<sub>1sub> D、∆H<sub>3sub>=2∆H<sub>1sub>-∆H<sub>2sub>
A、C<sub>11sub>H<sub>24sub> B、C<sub>12sub>H<sub>26sub> C、C<sub>13sub>H<sub>28sub> D、C<sub>14sub>H<sub>30sub>
A、nC<sub>11sub>H<sub>22sub> B、nC<sub>11sub>H<sub>24sub> C、nC<sub>11sub>H<sub>20sub> D、nC<sub>11sub>H<sub>11sub>
A、h<sub>01sub>>h<sub>02sub> B、h<sub>01sub><h<sub>02sub> C、h<sub>01sub>=h<sub>02sub> D、h<sub>01sub>≤h0<sub>02sub>
A、C<sub>10sub>H<sub>24sub> B、C<sub>12sub>H<sub>26sub> C、C<sub>13sub>H<sub>28sub> D、C<sub>14sub>H<sub>30sub>
A、H<sub>1sub>、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub> B、H<sub>1sub>、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub>A C、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub>、H<sub>4sub> D、H<sub>2sub>A、H<sub>2sub>B、H<sub>3sub>A、H<sub>4sub>
A、△H<sub>1sub>+ △H<sub>2sub>+△H<sub>3sub> =△H<sub>4sub> B、△H<sub>1sub>+ △H<sub>2sub> = △H<sub>3sub> +△H<sub>4sub> C、(△H<sub>1sub>+ △H<sub>2sub>)-(△H<sub>3sub> +△H<sub>4sub>)=△H<sub>5sub> D、△H<sub>1sub>+△H<sub>2sub>+△H<sub>3sub>+△H<sub>4sub> =△H<sub>5sub>
A、h<sub>fsub>与λ都增大 B、h<sub>fsub>与λ都减小 C、λ不变,h<sub>fsub>增大 D、λ减小,h<sub>fsub>变大