【单选题】的发生频率有随母亲生育年龄的增加而增加的倾向。()
【单选题】( )的发生频率有随母亲生育年龄的增加而增加的倾向。
【简答题】我国交流电的频率为( ),周期为( )。
【单选题】Upon arrival, the pioneers who settled a new area of the frontier would eat which of the following?
A.
Corn, cattle, arid pigs.
B.
Indian maize, native fruits, and wild meat.
C.
Preserved fruits, dried meats, and pine roots.
D.
Fresh food and native vegetables.
【判断题】黑龙江省是一个多民族、散杂居的边疆省份,全省共有53个少数民族。
【单选题】( )的发生频率有随母亲生育年龄的增加而增加的倾向。
【单选题】Upon arrival, the pioneers who settled a new area of the frontier would eat which of the following?
B.
Indian maize, native fruits and wild meat.
C.
Preserved fruits, dried meats and pine roots.
D.
Fresh food and native vegetables.
【单选题】The fact that______can be learned about the 'new frontier' in the text.
A.
Japan has been looking beyond the 'new frontier'
B.
it is filled up with corporate competitors
C.
it results in a major global revival recently
D.
Japanese firms are the latecomers in this area
【单选题】() 的 发生频率有随母亲生育年龄的增加而增加的倾向。