How many independent clauses in a compound sentence?
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What must every sentence end?
A. verb
B. punctuation mark
C. capital letter
What is my nickname?
A. Fred
B. Dog
C. Will
What is my favorite thing to do in my free time?
A. travel
B. play ice hockey
C. climb mountains
盘式车轮制动器自动调节制动器间隙的零件是( )。
A. 制动钳
B. 制动盘
C. 活塞
D. 密封圈