【单选题】.---You have joined the Singing Club, haven't you? ---_______________. I like singing, but I don't have any time.
【判断题】生产者要想盈利需要保证生产商品的个别价值低于社会价值。()
【单选题】常用照相机的光圈系数排列顺序为?
A.
f/1 f/2 f/3 f/4 f/8 f/16
B.
f/1.4 f/1.8 f/2.8 f/4.8 f/6 f/8
C.
f/2 f/2.8 f/4 f/5.6 f/8 f/11
D.
f/2 f/2.8 f/4 f/5.6 f/8 f/16 f/22
【单选题】I don’t like swimming, ______ I won’t join the swimming club.
【单选题】常用照相机的光圈系数排列顺序为?
A.
f/2 f/2.8 f/4 f/5.6 f/8 f/16 f/22
B.
f/2 f/2.8 f/4 f/5.6 f/8 f/11
C.
f/1 f/2 f/3 f/4 f/8 f/16
D.
f/1.4 f/1.8 f/2.8 f/4.8 f/6 f/8
【单选题】Shoes of this kind are ___to slip on wet ground.
【简答题】设计压铸模的推杆机构时,推杆要尽量短,一般应将压铸件推至高于 10mm左右。压铸成型时,推杆端面一般高出所在 或 0.05~0.1mm。
【多选题】导游人员针对游客口头投诉应如何正确处理()
【单选题】关于急性肾炎的治疗,错误的是
B.
对于反复发作的慢性扁桃体炎,待病情稳定后可考虑扁桃体摘除