【多选题】( )是对客源地旅游需求产生长期影响的因素。
【单选题】I _____scared of dogs ever since a dog hurt me when I was six years old.
【单选题】听力原文:W: I would like to have a dog of my own. Do you have any ideas of dogs? M: Oh, dogs are social animals and without proper training, they will behave like wild animals. W: It sounds terrible. How ...
A.
Dogs are social animals.
B.
Dogs are wild animals.
C.
Dogs can bite their owners.
D.
Dogs can obey to their owners if properly trained.
【单选题】I _________ scared of dogs ever since a dog hurt me when I was five years old.
【单选题】I _____scared of dogs ever since a dog hurt me when I was five years old。
【单选题】i、j已定义为 int 类型,for(i=5;i;i- -) for(j=0;j<4;j++){;}则程序段中内循环体的执行次数是
【判断题】万能分度头蜗杆脱落手柄的作用只是使蜗杆与蜗轮脱开。