Among the factors that __________ to his fruitless college life is the absence of a good compass in the ocean of learning.
A. contribute
B. constant
C. complete
D. comfort
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It's really _____________to know that he failed in the exam he was determined to pass.
A. depressed
B. depress
C. depressing
D. disorder
叠层机是与饼干成型机配套使用的设备,经该机生产出来的饼干 、 、 。
A. 层次分明
B. 口感酥化
C. 松散
D. 松脆
叠层机根据压辊排列位置的不同分为 叠层机和 叠层机。
Why do some students like to take part-time jobs?