单项选择题

Planet“Y”orbits the Sun in six months. AB is four times the distance of CD.How long does Planet“X”take to orbit the Sun

A．8 years.
B．6 years
C．6 years
D．6 years
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单项选择题
Jenny and Jessica have short hair. Nicky and Jade have long hair. Jade, Jenny and Nicky are tall. Jessica is not. Jade does not wear spectacles, the others do. Which of the following statements must be true
A．Jade and Jenny are tall and have long hair.
B．Jenny and Jessica have short hair and are tall.
C．Jessica and Nicky wear spectacles and have short hair.
D．Jessica and Jenny have short hair and wear spectacles.
单项选择题
Westminster Palace is the .
A．residence of the Prime Minister
B．seat of the Church of England
C．residence of the Queen
D． seat of the British Houses of Parliament
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