【单选题】Thousands of Irish people starved during the “Potato Famine” because
A.
they were so dependent on potatoes that they refused to eat anything else
B.
they were forced to leave their homeland and move to America.
C.
the potato harvest was bad
D.
the weather conditions in Ireland were not suitable for growing potatoes.
【简答题】Ireland became so dependent on it that hundreds of thousands of Irish people starved when the crop failed during the 'Potato Famine (饥荒)'of 1845-1846, and millions more were forced to leave their home...
【简答题】PPL scientists will try to solve their problem by [A] removing the sugar molecule on the suce of pig cells. [B] distinguishing human tissues form. those of pigs. [C] using the sugar-free nucleus in...
【简答题】Thousands of Irish people starved during the'Potato Famine'because
【判断题】回弹法检测单个构件混凝土强度时,其强度推定值等于构件中最小测区混凝土强度换算值。
【判断题】回弹法检测单个构件混凝土强度时,结构或构件的混凝土强度推定值等于构件中最小的测区混凝土强度换算值。
【判断题】某钢筋混凝土梁处于一类环境中,混凝土强度等级C30,则梁的混凝土保护层最小厚度为25mm。