[单项选择]The distance zone ranging from 4 feet to about 8 feet is referred to as the ______ zone.
A. public
B. intimate
C. socio-consultative
D. casual-personal

[单项选择]Just over three years old and about four-feet tall. Methuselah is growing well. "It’s lovely." Dr. Sarah Sallon said of the date palm，whose parents may have provided food for the besieged Jews at Masada some 2 000 years ago. The little tree was sprouted in 2005 from a seed recovered from Masada, where rebelling Jews committed suicide rather than surrender to Roman attackers.
Radiocarbon dating of seed fragments clinging to its root, as well as other seeds found with it that didn’t sprout, indicate they were about 2 000 years old—the oldest seed known to have been sprouted and grown.
Sallon, director of the Louis L. Borick Natural Medicine Research Center at Hadassah Medical Organization in Israel, updates the saga of Methuselah in Friday’s edition of the journal Science.
One thing they don’t know yet is whether it’s a boy or girl. Date palms differ by sex, but experts can’t tell the difference until the tree is six or seven years old, Sallon said.
She hopes t
A. is an ancient tree about 2 000 years old
B. is grown from a seed about 2 000 years old
C. had already become extinct 2 000 years ago
D. has been the food source since 2 000 years ago

[填空题]The ______ zone ranges from 18 inches to about 4 feet.

[单项选择]