[ Cardiology Services ]
The SA node is responsible for which type of heart rhythm?
A. sinus
B. atrial
C. ventricular

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ConjunctionsSimple Past/Past ProgressivePast SimpleDefinite & Indefinite Pronoun & ConditionalsVocabullary TestClause Markers TOEFL GrammarArticles & PrepositionArticle and Order of AdjctiveTenses and VerbsComparative & Superlative AdverbsOther quiz:
Grammar › ViewSonia ______ in La Paz city.
A. lives
B. live
C. drinks
D. meets
Mixed General Quiz › View
She is an expert in the ___ arts.
a. marital
b. martial
The Queen sat on her ___ to open parliament.
a. throne
b. thrown
Conditional Sentence Type 2 › View
What would you do if you ______ a million pounds?
A. won
B. win
C. will win
D. had won
