My greatest fear is that people will never learn to distinguish truth from .
A. failure
B. flattery
C. fallacy
D. fracture
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Hemophilia is due to in a coagulation factor and results in a bleeding disorder that often involves joints and muscles.
A. efficiency
B. deficiency
C. proficiency
D. sufficiency
The term infertility implies that the condition can be treated and reversed. The term isapplied to a permanent, irreversible inability to have children.
A. sterility
B. specificity
C. sensitivity
D. conductivity
The woman is the obvious source of blame for the couple’s childlessness because she has undergone .
A. hysterectomy
B. appendectomy
C. keratectomy
D. tonsillectomy
安全的结构,一定是可靠的,对吗()
A. 对
B. 不对