题目内容：
I cannot concentrate ____________ anything when I am hungry.(本题1.0分)A、 on
B、 with
C、 at
D、 in
参考答案：
选择题：I cannot concentrate ____________ anything when I
- 题目分类：商丘师范学院-英语语音与正音（二）(高起专)
- 题目类型：选择题
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A、 on
B、 with
C、 at
D、 in
A、 on
B、 with
C、 at
D、 in
2在( )条件下，厂商的AR曲线、MR曲线和需求曲线d三条线是重叠的。
2在( )条件下，厂商的AR曲线、MR曲线和需求曲线d三条线是重叠的。 A、 完全竞争; B、 垄断竞争; C、 垄断; D、 寡头。
局域网的简称是 。A、LANB、WANC、MAND、CN
局域网的简称是 。A、LANB、WANC、MAND、CN
设 image84.jpg，则 image85.jpg（ ）(本题4.0分)
设 image84.jpg，则 image85.jpg（ ）(本题4.0分)
What are the outstanding animal behaviors we can l
What are the outstanding animal behaviors we can learn from the teaching video?A
---Would you like to go for a picnic with us tomor
---Would you like to go for a picnic with us tomorrow? --- Of course, I ________