陡坡泄槽i>i<sub>k</sub>,当水深h<sub>o</sub><h<h<sub>k</sub>,h<sub>o</sub>为正常水深,h<sub>k</sub>为临界水深,泄槽水面曲线为()。
A、a型壅水曲线
B、b型降水曲线
C、c型壅水曲线
D、均可发生
A、a型壅水曲线
B、b型降水曲线
C、c型壅水曲线
D、均可发生
A、C<sub>isub>(消费)=500+0.8I<sub>isub>(收入) B、Q<sub>disub>(商品需求)=10+0.8I<sub>isub>(收入)+0.9P<sub>isub>(价格) C、Q<sub>sisub>(商品供给)=20+0.75P<sub>isub>(价格) D、Y<sub>isub>(产出量)=0.65K0.6<sub>isub>(资本)L0.4<sub>isub>(劳动)
A、I<sub>1sub>-I<sub>2sub>-I<sub>3sub>-I<sub>4sub> + I<sub>5sub>=0 B、I<sub>1sub>-I<sub>2sub> + I<sub>3sub>-I<sub>4sub>-I<sub>5sub>=0 C、I<sub>1sub>-I<sub>2sub>+ I<sub>3sub> + I<sub>4sub> +I<sub>5sub>=0 D、I<sub>1sub>-I<sub>2sub> + I<sub>3sub>-I<sub>4sub> + I<sub>5sub>=0
A、I<sub>5sub>+I<sub>6sub>+I<sub>4sub> =0 B、I<sub>1sub>+I<sub>2sub>-I<sub>3sub> =0 C、I<sub>3sub>-I<sub>5sub>-I<sub>6sub>-I<sub>1sub>-<sub>I2sub> =0 D、I<sub>1sub>+I<sub>2sub>-I<sub>3sub>-I<sub>4sub> =0
A、I<sub>1sub>+I<sub>6sub>-I<sub>4sub> =0 B、I<sub>1sub>-I<sub>2sub>+I<sub>3sub> =0 C、I<sub>3sub>-I<sub>5sub>-I<sub>6sub> =0 D、I<sub>3sub>+I<sub>4sub>-I<sub>2sub>-I<sub>6sub> =0
A、F<sub>isub>V<sub>isub>=F<sub>isub>+1V<sub>isub>+1 B、F<sub>isub>V<sub>isub>
A、I<sub>1sub>-I<sub>2sub>+I<sub>3sub>=5A B、I<sub>1sub>-I<sub>2sub>+I<sub>3sub>=-5A C、-I<sub>1sub>+I<sub>2sub>-I<sub>3sub>=0 D、I<sub>1sub>+I<sub>2sub>+I<sub>3sub>=0
A、i=i<sub>1sub>+i<sub>2sub>+i<sub>3sub>+i<sub>4sub>=12 B、i=i<sub>1sub>×i<sub>2sub>×i<sub>3sub>×i<sub>4sub>=72 C、i=3(i<sub>1sub>+i<sub>2sub>+i<sub>3sub>)=48 D、不能求得
A、I<sub>csub>+I<sub>bsub>-I<sub>2sub>=0 B、I<sub>csub>-I<sub>bsub>+I<sub>2sub>=0 C、I<sub>csub>+I<sub>bsub>+I<sub>2sub>=0 D、I<sub>csub>-I<sub>bsub>-I<sub>2sub>=0
A、I<sub>bsub>+I<sub>asub>-I<sub>1sub>=0 B、I<sub>bsub>-I<sub>asub>+I<sub>1sub>=0 C、I<sub>bsub>-I<sub>asub>-I<sub>1sub>=0 D、I<sub>bsub>+I<sub>asub>+I<sub>1sub>=0