In order to promote its brand, Harvard University has put a lot of money and time to launch an advertising ____.[ ]

A. campaign

B. struggle

C. movement

D. promotion

膳食蛋白质缺乏可导致（）。

A.消化腺受累

B.酶活性下降

C.肌肉蛋白合成不够

D.抗体合成减少

E.以上都是