因为甲数的80%等于乙数的75%,所以甲数大于乙数.______.
甲数是1,那么乙数就是80%÷75%≈1.07;
1<1.07;
故答案为:错误.
—My son is addicted to computer games. He is hopeless, isn't he?
—Yes, _____ he is determined to give up and start all over.
A.if
B.when
C.even if
D.unless
公众对讲机的有效发射功率不能大于()W。
A、0.1
B、0.5
C、1
D、5