用括号中所给的单词的适当形式填空，每个单词限用一次。

(busy   swim   hard   three   ourselves)

1. Father's day is on the _________ Sunday in June.

2. The traffic during the rush hour is much _________ than usual.

3. We must learn to look after __________ when we are alone at home.

4. _________ is good for health.

5. When I got to the top of the high mountain, I could __________ walk any more.

MRI眼图像的优点哪项不对

A．对晶状体没有x线辐射作用

B．能直接多方位成像

C．骨结构、钙化灶和异物信号强

D．对软组织有高清晰的分辨力

E．MRI对眶内容物、视神经和视交叉等软组织分辨力高