【单选题】甲是一家酒店的服务生,某日对另一服务生乙谎称丙欠债不还,令其从学校绑架丙之子作为人质,讨还债务。乙按甲吩咐绑来丙之子。后甲又指使丁打电话向丙勒索50万元。丁打出勒索电话。当甲再次要求丁打出勒索电话时,丁拒绝。关于甲、乙、丁的行为,说法正确的是:( )
【单选题】Tom burnt his hand when he _____ the dinner.
【判断题】服务的自动化程度越高,顾客参与服务生产的程度越大。()
【单选题】Radiation fog _____.
A.
always forms over water
B.
is formed by a temperature inversion
C.
is thinnest at the surface
D.
dissipates during the evening
【单选题】Radiation fog _____.
A.
always forms over water
B.
is formed by a temperature inversion 逆温现象
C.
is thinnest at the surface
D.
dissipates during the evening
【简答题】正方形ABCD的边长为4,BE ∥ AC交DC的延长线于E. (1)如图1,连接AE,求△AED的面积. (2)如图2,设P为BE上(异于B、E两点)的一动点,连接AP、CP,请判断四边形APCD的面积与正方形ABCD的面积有怎样的大小关系?并说明理由. (3)如图3,在点P的运动过程中,过P作PF⊥BC交AC于F,将正方形ABCD折叠,使点D与点F重合,其折线MN与PF的延长线交于点Q,以正方形...