根据短文理解，选择正确答案。

Hours

Monday – Thursday: 10:00 am – 5:00 pm

Friday: 10:00 am – 8:00 pm

Saturday: 10:00 am – 5:00 pm

Sunday: 11:00 am – 5:00 pm

    Closed on Thanksgiving Day and Christmas Day.

    The Museum Shop is open during regular museum hours.

The Museum Library

Monday –Friday: 10:00 am – 5:00 pm

The Skyliner Restaurant

Monday - Saturday: during regular museum hours

Sunday: 11:30 am – 5:00 pm

Admission

Adults:$7.00

The aged and students with ID: $6.00

    Wonderful Museum offers a 50% discount to groups of 20 or more.

下图中有甲、乙两地，甲地位于乙地的方向是（    ）

如图所示，在光滑绝缘的水平面内，对角线AC将边长为L的正方形分成ABC和ADC两个区域，ABC区域有垂直于水平面的匀强磁场，ADC区域有平行于DC并由C指向D的匀强电场．质量为m、带电量为+q的粒子从A点沿AB方向以v的速度射入磁场区域，从对角线AC的中点O进入电场区域．