【单选题】水稻、浮萍、油菜等只要( )合适光周期即可完成光周期诱导。
【多选题】Which of the following is true about online advertising?
A.
advertisers have aggressively increased online spending and cut budget on traditional channels
B.
how to adequately measure its results is a concern
C.
two-way communication between advertisers and potential customers becomes possible
D.
online advertising does not include local marketing
【单选题】将前缀运算符“--”重载为非成员函数,下列原型中能正确用于类中说明的是( )。
B.
DeCr operator--(DeCr&,int);
C.
friend DeCr&operator--(DeCr&);
D.
friend DeCr operator--(DeCr&,int);
【单选题】不同种类的植物通过光周期诱导的天数不同,短的如苍耳、水稻、浮萍、油菜等只要 个合适光周期即可完成光周期诱导。
【多选题】Which of the following is 对 about online advertising?
A.
advertisers have aggressively increased online spending and cut budget on traditional channels
B.
how to adequately measure its results is a concern
C.
two-way communication between advertisers and potential customers becomes possible
D.
online advertising does not include local marketing
【单选题】Developing an efficient system for transporting products __________.
A.
becomes easy once the best mode of transportation is selected
B.
is almost always the responsibility of marketing intermediaries
C.
can be a complex process that involves several interrelated decisions
D.
used to be amjor concern for most firms, but has become much simpler in recent years as production technologies have stabilized