How many people are there in the first paragraph? A: Dobie Rob Polly B: Dobie Rob C: Dobie Polly D: Rob Polly

"You can't speak French. Rob can't speak French. Looks like nobody at this school can speak French." It is false analogy.

It can be concluded from the story that（）. A: Jim and his men didn’t rob the family B: the family they were going to rob was not rich in fact C: the thief who was sent to the beautiful house was foolish D: the young man and the girl were husband and wife

The narrator and Rob made a deal that Rob gave the narrator his leather jacket, and the narrator, in exchange, gave Rob his girlfriend.

RAPID编程中，新建例行程序时，默认的程序名称为（）。 A: A.Routine1 B: B.Module11 C: C.Procedure D: D.T_ROB1

My roommate rob made a

染色体畸变会使生殖细胞在分裂时形成配子种类最多的畸变类型是（） A: inv B: del C: t D: b E: rob

设α1=(1，1，2，2)T，α2=(t，t+2，2t+2，2t+4)T，α3=(1，a+1，2a+3，2a+2)T，α4=(-2，-3，2t-9，t-7)T，若（）成立，α1，α2，α3，α4线性无关。 A: t=1，且a=-1 B: t=1，或a=-1 C: t≠1，且a≠-1 D: t≠1，或a=-1

齐次线性方程组的基础解系为（）。 A: α1=（1，1，1，0）T，α2=（-1，-1，1，0）T B: α1=（2，1，0，1）T，α2=（-1，-1，0）T C: α1=（1，1，1，0）T，α2=（1，0，0，1）T D: α1=（2，1，0，1）T，α2=（-2，-1，0，1）T

What is the deal between the narrator and his roommate Rob?