Which of the following titles in most appropriate to the passage?
A. Polarity Reversal: A Fantastic Phenomenon of Nature
B. Measurement of the Earth's Magnetic-Field Intensity
C. Formation of the Two Poles of the Earth
D. A New Approach to the Study of Geophysics
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Scientists are______certain that there is a cancer — inhibiting agent in the blood of the
A. dubiously
B. virtually
C. queerly
D. randomly
Nicholas Chauvin, a French soldier, aired his veneration of Napoleon Bonaparte so______and
A. vociferously
B. patriotically
C. verbosely
D. loquaciously
It is______understood by all concerned that the word no one who visits him ever breathe a
A. uncommunicatively
B. acceptably
C. tacitly
D. taciturnly
The word"illusory"(Para. 4) is closest in meaning to "______".
A. dramatic
B. ordinary
C. drastic
D. imaginary