Relief workers were astonished by what they saw and heard.
A. moved
B. touched
C. surprised
D. worried
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He has found a lot of reasons to explain his failure.
A. effects
B. results
C. causes
D. bases
一个16K×32位的存储器,其地址线和数据线的总和是___。
A. 48;
B. 46;
C. 36;
D. 38。
She was cheerful to hear that his son has got the gold medal.
A. excited
B. hateful
C. horrible
D. thankful
皮肤接触腐蚀性毒物者,冲洗时间要求是
A. 15-30min
B. 5-10min
C. 10-15min
D. 10-20min