大全补充 150,

150  Distinguished architecture requires the expenditure of large sums of money, even if it is by no means certain that the expenditure of large sums of money produce distinguished architecture.

(A) even if it is by no means certain that the expenditure of large sums of money produce

(B) even if it is by no means certain that the expenditure of large sums of money will produce

(C) even though there is no certainty that the expenditure of money in large sums produces

(D) even though it is by no means certain that the expenditure of large sums of money produces

(E) though there is no certainty as to the expenditure of money in large sums producing

请教B和D 的区别，哪个更好呢

先给个这，基本上能区分B,D.

even if和even though的区别

even if          即使，假使(有虚拟的意思)
used to emphasize that something will still be true if another thing happens
She's going to have problems finding a job even if she gets her A levels.
even though      虽然
used to emphasize that something is true although something else has happened or is true
Even though he's 24 now, he's still like a little child.

而且从意思和时态一致性看，感觉produces比will好。