We are in receipt of your letter of 1 st September, in forming us of the establishment of your L/C No. 894 ______ our S/C No. 90US9094. A: against B: under C: covered D: on

图示电路的uS(t)=2cos(t+45°)V,则电压uC(t)与电压uS(t)的相位差等于()【图片】 A: 90° B: -90° C: 45° D: -45°

The job increase is a (hope) sign for small and medium business that employ 90% of the US workforce.

图示电路的uS(t)=2cos(t+45°) V,则电压uC(t)与电压uS(t)的相位差等于( )[img=774x357]1803e02369d6e53.png[/img] A: 90° B: -90° C: 45° D: -45°

图示电路的uS(t)=2cos(t+45°) V,则电压uC(t)与电压uS(t)的相位差等于( )[img=774x357]1802d8153c28219.png[/img] A: 90° B: -90° C: 45° D: -45°

图示电路的uS(t)=2cos(t+45°) V,则电压uC(t)与电压uS(t)的相位差等于( )[img=774x357]18036ad45367219.png[/img] A: 90° B: -90° C: 45° D: -45°

图示电路的uS(t)=2cos(t+45°) V,则电压uC(t)与电压uS(t)的相位差等于( )[img=774x357]18037013e31f38e.png[/img] A: 90° B: -90° C: 45° D: -45°

图示电路的uS(t)=2cos(t+45°) V,则电压uC(t)与电压uS(t)的相位差等于( )[img=774x357]18032c6b9f48e1b.png[/img] A: 90° B: -90° C: 45° D: -45°

图示电路的uS(t)=2cos(t+45°) V,则电压uC(t)与电压uS(t)的相位差等于( )[img=774x357]1802d810ae8bf01.png[/img] A: 90° B: -90° C: 45° D: -45°

The flood caused an economic damage of US$（）million. A: 50 B: 90 C: 100 D: 500