题目内容
一阶线性非齐次方程组的任意两个非零解之和( )
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向量函数组在区间I上线性相关的()是在区间I 上他们的Wronsky行列式W(t)=0.
Directions: Fill in each blank with the proper form of the verb given in brackets.1. You might as well (give) ____________ him an opportunity.2. When you were a baby, you used to (cry) ____________ all day and all night.3. We are strongly opposed to (have) ____________ a party without John.4. She was lying under a tree listening to the bird (sing) ____________.5. I could do nothing but (pretend) ____________ that I didn’t know it.6. The beat of jazz is so powerful that the listeners cannot help but (dance) ____________ or move theirfeet along with it.7. I’m looking forward to (see) ____________ your new house.8. The president said he would rather (have) ____________ an hour of trouble with union officials thantrouble with his wife for the rest of his life.
下列不属于恒温动物的是（）。
（）是最早产羊膜卵的动物。
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