Amniocentesis should not be conducted before the ______ week of pregnancy, as it may increase the risk of miscarriage.
A. 15th
B. 20th
C. 27th
D. 30th
Answer: A
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In a study of immigrant children in California (Hakuta et al., 2000), it took __________ for immigrant children to catch up to native English speakers in the use of everyday English.
A. only a few months B. almost a year C. two to five years D. a lifetime
What makes humans most unique from other animals is ____
a. culture b. communication c. social bonding d. division of labor
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A. irrational; accepting any offer B. irrational; accepting only high offers C. rational; accepting any offer D. rational; accepting only high offers
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