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【多选题】
常用的观察法为（ ）。A.
直接观察法
B.
行为记录法
C.
实际痕迹观察法
D.
实验法
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【单选题】Jack will always remember those days______he stayed in China with his brother, ______has a great effect on his life.
A.
that; which
B.
when; which
C.
which; that
D.
when; that
【简答题】一圆锥的侧面展开图是半径为2的半圆，则该圆锥的全面积是 ▲ .
【单选题】Wherever he traveled in those days, he always _______ down what he saw and heard.
A.
writes
B.
has written
C.
wrote
D.
had written
【单选题】.He said he _________ experiments those days.
A.
was doing
B.
had been doing
C.
has been doing
D.
is doing
【简答题】一圆锥的侧面展开图是半径为2的半圆，则该圆锥的全面积是 .
【简答题】棱锥的侧面都是（ ）形，圆锥的侧面展开图是（ ）形。
【简答题】已知圆锥的侧面展开图是直径为8cm的半圆，则这个圆锥的侧面积是 cm 2 .
【简答题】2005年是自治区成立（ ）、（ ）是自治区第一个百万农奴解放纪念日。
【单选题】In those days, he would go to Mr. Black and his family, __________.
A.
where he was treated as part of them
B.
for whom it was good
C.
that was the most important part of his life
D.
with whom he had a wonderful time
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