【多选题】某同学做光圈对景深的影响实验,拍摄了两张照片,他使用的是Av模式,第一次光圈调到5.6,第二次光圈调到11,发现两张照片的景深没有什么变化。 可能的原因和改善办法是:
B.
第二张照片光圈不够小。可以把第二张照片的光圈再调小些,比如调到22。
C.
两个物体的距离可能太近了。可以把两个物体的距离拿远些。
D.
拍摄距离太近了,拍摄者可以离拍摄主体更远一点。其他不变。
【单选题】Why will Central Station be closed?
B.
to remove ticket office machines
C.
to repair ticket vending machines
D.
to replace AFC machines with token machines
【单选题】Why will Central Station be closed?
B.
To remove ticket office machines.
C.
To repair ticket vending machines.
D.
To replace AFC machines with token machines.
【单选题】我国一名18岁周岁的普通护照持有人,护照的有效期为( )年。
【简答题】Any passenger who has booked the plane ticket must _____ it three days before the departure date. a. claim b. confirm c. declare d. replace
【判断题】焊接热处理中常用的加热方法有电加热、工频感应加热、中频感应加热、火焰加热、氧一乙炔等。
【单选题】SECTION 3 Error Correction This section consists of 15 sentences in each sentence there is a part given in the brackets that indicates a grammatical error. Below each sentence, there are 4 choices res...
A.
Everyone who doesn't have a free ticket
B.
No one who doesn't have a free ticket
C.
No one who has free tickets
D.
Anyone who has free tickets
【简答题】In a push-pull strategy, some stages of the supply chain, typically the initial stages are operated in a push-based manner, while the remaining stages employ a pull-based strategy. The intece betwe...