皮皮学，免费搜题
登录
搜题
【单选题】
James is my friend. She is good at ____ jokes.A.
speaking
B.
saying
C.
telling
D.
talking
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】热轧钢筋是低碳钢或普通低合金钢在______轧制而成。按照其强度的高低，分为______、______、______等几种，在图纸与计算书中分别用符号______、______及______表示，其中______钢筋为光圆钢筋，其余的为带肋钢筋。
【单选题】Grey whales have long been ________ in the north Atlantic and hunting was an important cause for that.
A.
extincted
B.
extinguished
C.
detained
D.
deprived
【简答题】(16分)运用化学反应原理研究NH 3 的性质具有重要意义。请回答下列问题： （1）已知：①4NH 3 (g)+3O 2 (g)===2N 2 (g)+6H 2 O(g) H=-1266.8kJ·mol -1 ②N 2 (g)+O 2 (g)===2NO(g) H=180.5kJ·mol -1 写出氨高温催化氧化的热化学方程式 。 （2）氨气、空气可以构成燃料电池，其电池反应原理为4NH 3 +3...
【单选题】Many species of whales will not breed unless ______.
A.
they are in the same group for a long term
B.
they are isolated from other species
C.
they are in the company of many other whales
D.
there are enough genes available
【单选题】Grey whales have long been ________ in the north Atlantic and hunting was an important cause for that.
A.
extinct
B.
extinguished
C.
detained
D.
deprived
相关题目：
参考解析：
知识点：
题目纠错 0
发布
