单项选择题

A．she wants to be interactive
B．they are convenient
C．they help to focus the learners’ attention
D．she is afraid of technology
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单项选择题
According to the passage, which of the following should be encouraged to enhance the learning of math and science 1. Problem solving. 2. Actual research. 3. Repetitive in-class drills. 4. Group work. 5. Rote learning.
A．1 and 3.
B．1, 2 and 4.
C．4 and 5.
D．2, 3 and 5.
单项选择题
A．1973B．1953C．1995D．1999
A．1973
B．1953
C．1995
D．1999
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