听力原文:W: Jack! Slow down! It's too dangerous to walk so fast. We're going down hill.
M: Don't worry. Oh, no, my foot.
W: What happened?
M: I've sprained my ankle! It hurts a great deal.
W: Which one?
M: The fight one.
W: Oh. It's already swollen. Let me give you massage.
M: Massage?
W: Yes. I learned it from my grandma.
M: Oh. It hurts a lot.
W: Be relaxed. You'll feel better soon.
M: Ah! Much better now. Thank you !
What are the man and the woman doing?
A. They are climbing the mountain.
B. They are playing basketball.
C. They are going down hill.
Such ______ the case, there were no grounds for justifying your complaints.
A. was
B. were
C. would be
D. being
同一长度的压杆,截面积及材料均相同,仅两端支承条件不同,则()杆的临界力最小。
A. 两端较支
B. 一端固定,一端自由
C. 一端固定,一端较支
D. 两端固定
下列检查中,哪点是特征性的()
A. 糖尿阳性
B. 空腹血糖增高
C. 葡萄糖耐量试验异常
D. 血脂增高
E. 尿酮阳性