8)The gravitational  attractive of a black hole is extremely intense, but it would be no stronger ___ of a normal star of the same mass.

　　A.than that

　　B.as is

　　C.than it is

　　D.from which

　　9)____ basically hunting animals and as such are physiologically adapted to going for long periods without food or water.

　　A.Dogs being

　　B.Dogs

　　C.There are dogs

　　D.Dogs are

　　10)In filmmaking, ___ the segments of a film are presented can be varied to creat drastically different dramatic effects.

　　A.the order which in

　　B.the order in which

　　C.in the order which

　　D.in which the order

　　11)Perhaps even more important than the accuracy and realibility of a m……cal instrument ___.

　　A.that positioning it is correct

　　B.is positioned correctly

　　C.that its correct position

　　D.is that it be positioned correctly

　　12)The DP began to assume its modern form during the intence political conflict __ US citizens after the war of 1892.

　　A.divided

　　B.that divided

　　C.that divided it

　　D.that it divided

　　13)____ Earth's crust averages only 004 grams of the gold per ton, ……

　　A.Despite

　　B.Except

　　C.Although

　　D.Whether

　　14)In the process of v……,rubber is combined with sulfur, make it  ___ to heat and cold.

　　A.is resistant

　　B.to resist

　　C.resistant

　　D.resist