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问题
单项选择题
锯削木材时，若平直地上下推拉时过紧，有夹锯现象对锯条需要（）。
A.重新修整
B.重新分岔
C.挫锐
答案
参考答案：
C
填空题
Read and choose.
cold , better , bed , take, see, sad, drink
Tom can't go to school today, and he is very 1.
, He has a bad 2.
. He has to go and
3.
the doctor. The doctor tells him to 4.____ some medicine and hot drinks. Stay in 5.
for a
few days and he will feel 6.
soon
查看答案
多项选择题
无晶体眼的特征有
A．前房深
B．瞳孔深黑
C．黄仁震颤
D．屈光增加
E．屈光减弱
查看答案
