She told me not to trust anyone who has a handshake.
A. firm
B. hard
C. limp
D. light
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President Xi smiled and gave each of them a hearty.
A. handshake
B. shake hands
C. shake hand
D. handshakes
Judy spoke in a loud, rathervoice.
A. friendly
B. unfriendly
C. formal
D. informal
She arrived at the airport on time and greeted her mother a hug.
A. to
B. from
C. in
D. with
晶体管在放大状态时，其电压偏置条件为。
A. 集电结正向偏置、发射结正向偏置
B. 集电结正向偏置、发射结反向偏置
C. 集电结反向偏置、发射结反向偏置
D. 集电结反向偏置、发射结正向偏置
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