完成下列缩合反应[tex=12.357x1.357]8AicZI0k9S98Tfxt1Au8LT12DRzBZtRur8ozVqtcQl7w/K3ceYV9wT2tc48l0ILWKeMFukOF+fe3cNap0PxvcWTJDo9aV8ljYV5ZM2CcIRs=[/tex][tex=4.714x2.0]ggDg21R5XwyF4hAwj58bWHSmlr7WZ+kgS01Zis7pJx5/tZtDk8wE/+mkzgfQEoffpZn8VfPEGLYjEn1aYsOaLejjV2Alu1u2OfuDVbUNr+8=[/tex]

完成下列缩合反应[tex=12.357x1.357]8AicZI0k9S98Tfxt1Au8LT12DRzBZtRur8ozVqtcQl7w/K3ceYV9wT2tc48l0ILWKeMFukOF+fe3cNap0PxvcWTJDo9aV8ljYV5ZM2CcIRs=[/tex][tex=4.714x2.0]ggDg21R5XwyF4hAwj58bWHSmlr7WZ+kgS01Zis7pJx5/tZtDk8wE/+mkzgfQEoffpZn8VfPEGLYjEn1aYsOaLejjV2Alu1u2OfuDVbUNr+8=[/tex]

Question 8: We thanked (them, they) for their best wishes.

We are in receipt of your letter dated Jan 8， ____ we are pleased to learn that you want to order 100 tons of the subject goods.

What do we need to do to trigger our creativity? (Para. 8)

If you can（）the price by 8%, we shall order 200 metric tons.

We have classes every morning ___ 8 to 12. A: in B: , at C: from

中国大学MOOC: We ___ receipt of your letter of March 8, 2006。

If we use 8 bits of state information, how many states could be represented?

We arrived at 8:05, but the train __ already left. A: has B: have C: had