回答下列与激素调节有关的两个问题：Ⅰ、垂体是动物的重要内分泌腺，它由前叶与后叶两部分组成，这两部分的活动受到下丘脑的控制。科学家用犬进行相关实验研究，结果如下：①将垂体后叶切除，血液中抗利尿激素含量显著减少，犬的尿量增加。②将下丘脑与垂体后叶之间的神经联系阻断，结果与实验①相同。③将垂体前切除，犬出现甲状腺激素缺乏的症状。④将下丘脑与垂体前叶之间的血管联系阻断，结果与实验③相同。根据上述①～④实验结果，回答下列问题：
出现实验④的结果的原因是（）
参考答案：垂体前叶分泌促甲状腺激素的过程受下丘脑分泌的促甲状腺激素释放激素控制
FUN TIME
| 9 | 2 | 4 | 7 | 6 | 3 | 1 | 5 | 8 |
| 5 | 3 | 6 | 8 | 9 | 1 | 4 | 2 | 7 |
| X | 7 | 8 | 2 | 5 | 4 | 9 | 6 | 3 |
| 7 | 1 | 9 | 3 | 4 | 2 | 5 | 8 | 6 |
| 4 | 8 | 3 | 6 | 1 | 5 | 2 | 7 | 9 |
| 2 | 6 | 5 | 9 | 8 | 7 | 3 | 4 | 1 |
| 3 | 9 | 7 | 4 | 2 | Y | 6 | 1 | Z |
| 6 | 5 | 2 | 1 | 7 | 9 | 8 | 3 | 4 |
| 8 | 4 | 1 | 5 | 3 | 6 | 7 | 9 | 2 |
The rule of the puzzle is to fill in the grids (格子) so that every row, every line and every 3×3 box has the numbers 1 to 9. Here is a Sudoku. Please relax and enjoy. It’s fun!
根据以上杂志专栏内容，回答下列问题。
小题1:Who created Sudoku?
A．Howard Garnes.
B．Sudoku.
C．Kaji Maki.
D．Nikoli.小题2:Which is true about Kaji Maki according to the reading material?
A．He was the boss of Nissan Company.
B．He helped to make Sudoku popular in Japan.
C．He was the president of The Times.
D．He is an American.小题3:Which is NOT true about Sudoku?
A．Sudoku wasn’t invented in Japan.
B．It was The Times that first printed Sudoku in the newspaper.
C．Each grid has more than one number.
D．It became popular around the world in 2005.小题4:In the puzzle above, what should “X” be?
A．5.
B．4.
C．3.
D．1.小题5:What should “Z” be in the puzzle?
A．8.
B．5.
C．2.
D．4.